Home / 518,319,151.40-777,478,727.10-324,608,906.90

Finding the Fourth Proportional to 518,319,151.40, 777,478,727.10 and 324,608,906.90

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Solution

The fourth proportional to 518,319,151.40, 777,478,727.10 and 324,608,906.90 is: 486,913,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,319,151.40 : 777,478,727.10 = 324,608,906.90 : x
  2. Step 2: Convert to fraction form
    518,319,151.40/777,478,727.10 = 324,608,906.90/x
  3. Step 3: Cross multiply
    518,319,151.40x = 777,478,727.10 × 324,608,906.90
  4. Step 4: Simplify right side
    518,319,151.40x = 252,376,519,741,934,400
  5. Step 5: Solve for x
    x = 252,376,519,741,934,400/518,319,151.40
  6. Step 6: Final answer
    x = 486,913,360.35

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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.