Home / 766,634,552.40-1,149,951,828.60-721,284,920.40

Finding the Fourth Proportional to 766,634,552.40, 1,149,951,828.60 and 721,284,920.40

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Solution

The fourth proportional to 766,634,552.40, 1,149,951,828.60 and 721,284,920.40 is: 1,081,927,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,634,552.40 : 1,149,951,828.60 = 721,284,920.40 : x
  2. Step 2: Convert to fraction form
    766,634,552.40/1,149,951,828.60 = 721,284,920.40/x
  3. Step 3: Cross multiply
    766,634,552.40x = 1,149,951,828.60 × 721,284,920.40
  4. Step 4: Simplify right side
    766,634,552.40x = 829,442,913,155,585,408
  5. Step 5: Solve for x
    x = 829,442,913,155,585,408/766,634,552.40
  6. Step 6: Final answer
    x = 1,081,927,380.60

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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.