Home / 766,387,772.20-1,149,581,658.30-721,038,140.20

Finding the Fourth Proportional to 766,387,772.20, 1,149,581,658.30 and 721,038,140.20

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Solution

The fourth proportional to 766,387,772.20, 1,149,581,658.30 and 721,038,140.20 is: 1,081,557,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,387,772.20 : 1,149,581,658.30 = 721,038,140.20 : x
  2. Step 2: Convert to fraction form
    766,387,772.20/1,149,581,658.30 = 721,038,140.20/x
  3. Step 3: Cross multiply
    766,387,772.20x = 1,149,581,658.30 × 721,038,140.20
  4. Step 4: Simplify right side
    766,387,772.20x = 828,892,220,908,663,936
  5. Step 5: Solve for x
    x = 828,892,220,908,663,936/766,387,772.20
  6. Step 6: Final answer
    x = 1,081,557,210.30

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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.