Home / 1,073,087,998.80-1,609,631,998.20-307,183,102.80

Finding the Fourth Proportional to 1,073,087,998.80, 1,609,631,998.20 and 307,183,102.80

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Solution

The fourth proportional to 1,073,087,998.80, 1,609,631,998.20 and 307,183,102.80 is: 460,774,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,087,998.80 : 1,609,631,998.20 = 307,183,102.80 : x
  2. Step 2: Convert to fraction form
    1,073,087,998.80/1,609,631,998.20 = 307,183,102.80/x
  3. Step 3: Cross multiply
    1,073,087,998.80x = 1,609,631,998.20 × 307,183,102.80
  4. Step 4: Simplify right side
    1,073,087,998.80x = 494,451,751,573,240,064
  5. Step 5: Solve for x
    x = 494,451,751,573,240,064/1,073,087,998.80
  6. Step 6: Final answer
    x = 460,774,654.20

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Half scale
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Double scale
Find fourth proportional to 1,073,087,999.80, 1,609,631,999.70 and 307,183,103.80
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.