Home / 766,634,549.40-1,149,951,824.10-721,284,917.40

Finding the Fourth Proportional to 766,634,549.40, 1,149,951,824.10 and 721,284,917.40

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Solution

The fourth proportional to 766,634,549.40, 1,149,951,824.10 and 721,284,917.40 is: 1,081,927,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,634,549.40 : 1,149,951,824.10 = 721,284,917.40 : x
  2. Step 2: Convert to fraction form
    766,634,549.40/1,149,951,824.10 = 721,284,917.40/x
  3. Step 3: Cross multiply
    766,634,549.40x = 1,149,951,824.10 × 721,284,917.40
  4. Step 4: Simplify right side
    766,634,549.40x = 829,442,906,459,947,776
  5. Step 5: Solve for x
    x = 829,442,906,459,947,776/766,634,549.40
  6. Step 6: Final answer
    x = 1,081,927,376.10

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Double scale
Find fourth proportional to 766,634,550.40, 1,149,951,825.60 and 721,284,918.40
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.