Home / 28,615,686.68-42,923,789.49-8,145,398.20

Finding the Fourth Proportional to 28,615,686.68, 42,923,789.49 and 8,145,398.20

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Solution

The fourth proportional to 28,615,686.68, 42,923,789.49 and 8,145,398.20 is: 12,218,171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,686.68 : 42,923,789.49 = 8,145,398.20 : x
  2. Step 2: Convert to fraction form
    28,615,686.68/42,923,789.49 = 8,145,398.20/x
  3. Step 3: Cross multiply
    28,615,686.68x = 42,923,789.49 × 8,145,398.20
  4. Step 4: Simplify right side
    28,615,686.68x = 349,631,357,572,260.69
  5. Step 5: Solve for x
    x = 349,631,357,572,260.69/28,615,686.68
  6. Step 6: Final answer
    x = 12,218,171.16

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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.