Home / 528,013,285.20-791,704,999.80-323,687,998.80

Finding the Fourth Proportional to 528,013,285.20, 791,704,999.80 and 323,687,998.80

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Solution

The fourth proportional to 528,013,285.20, 791,704,999.80 and 323,687,998.80 is: 485,338,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,013,285.20 : 791,704,999.80 = 323,687,998.80 : x
  2. Step 2: Convert to fraction form
    528,013,285.20/791,704,999.80 = 323,687,998.80/x
  3. Step 3: Cross multiply
    528,013,285.20x = 791,704,999.80 × 323,687,998.80
  4. Step 4: Simplify right side
    528,013,285.20x = 256,265,407,025,216,384
  5. Step 5: Solve for x
    x = 256,265,407,025,216,384/528,013,285.20
  6. Step 6: Final answer
    x = 485,338,937.88

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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.