Home / 766,634,553.40-1,149,951,830.10-721,284,921.40

Finding the Fourth Proportional to 766,634,553.40, 1,149,951,830.10 and 721,284,921.40

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Solution

The fourth proportional to 766,634,553.40, 1,149,951,830.10 and 721,284,921.40 is: 1,081,927,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,634,553.40 : 1,149,951,830.10 = 721,284,921.40 : x
  2. Step 2: Convert to fraction form
    766,634,553.40/1,149,951,830.10 = 721,284,921.40/x
  3. Step 3: Cross multiply
    766,634,553.40x = 1,149,951,830.10 × 721,284,921.40
  4. Step 4: Simplify right side
    766,634,553.40x = 829,442,915,387,464,576
  5. Step 5: Solve for x
    x = 829,442,915,387,464,576/766,634,553.40
  6. Step 6: Final answer
    x = 1,081,927,382.10

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Double scale
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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.