Home / 662,345,387,998.80-993,518,081,998.20-285,217,848,286.80

Finding the Fourth Proportional to 662,345,387,998.80, 993,518,081,998.20 and 285,217,848,286.80

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Solution

The fourth proportional to 662,345,387,998.80, 993,518,081,998.20 and 285,217,848,286.80 is: 427,826,772,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,345,387,998.80 : 993,518,081,998.20 = 285,217,848,286.80 : x
  2. Step 2: Convert to fraction form
    662,345,387,998.80/993,518,081,998.20 = 285,217,848,286.80/x
  3. Step 3: Cross multiply
    662,345,387,998.80x = 993,518,081,998.20 × 285,217,848,286.80
  4. Step 4: Simplify right side
    662,345,387,998.80x = 283,369,089,581,555,097,010,176
  5. Step 5: Solve for x
    x = 283,369,089,581,555,097,010,176/662,345,387,998.80
  6. Step 6: Final answer
    x = 427,826,772,430.20

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Double scale
Find fourth proportional to 662,345,387,999.80, 993,518,081,999.70 and 285,217,848,287.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.