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Finding the Fourth Proportional to 662,387,572.80, 993,581,359.20 and 657,852,609.60

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Solution

The fourth proportional to 662,387,572.80, 993,581,359.20 and 657,852,609.60 is: 986,778,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,387,572.80 : 993,581,359.20 = 657,852,609.60 : x
  2. Step 2: Convert to fraction form
    662,387,572.80/993,581,359.20 = 657,852,609.60/x
  3. Step 3: Cross multiply
    662,387,572.80x = 993,581,359.20 × 657,852,609.60
  4. Step 4: Simplify right side
    662,387,572.80x = 653,630,089,999,635,072
  5. Step 5: Solve for x
    x = 653,630,089,999,635,072/662,387,572.80
  6. Step 6: Final answer
    x = 986,778,914.40

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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.