Home / 539,904,011.20-809,856,016.80-356,238,001.60

Finding the Fourth Proportional to 539,904,011.20, 809,856,016.80 and 356,238,001.60

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Solution

The fourth proportional to 539,904,011.20, 809,856,016.80 and 356,238,001.60 is: 534,357,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,904,011.20 : 809,856,016.80 = 356,238,001.60 : x
  2. Step 2: Convert to fraction form
    539,904,011.20/809,856,016.80 = 356,238,001.60/x
  3. Step 3: Cross multiply
    539,904,011.20x = 809,856,016.80 × 356,238,001.60
  4. Step 4: Simplify right side
    539,904,011.20x = 288,501,489,008,568,000
  5. Step 5: Solve for x
    x = 288,501,489,008,568,000/539,904,011.20
  6. Step 6: Final answer
    x = 534,357,002.40

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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.