Home / 22,218,700.87-30,660,359.65-12,427,446.79

Finding the Fourth Proportional to 22,218,700.87, 30,660,359.65 and 12,427,446.79

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Solution

The fourth proportional to 22,218,700.87, 30,660,359.65 and 12,427,446.79 is: 17,149,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218,700.87 : 30,660,359.65 = 12,427,446.79 : x
  2. Step 2: Convert to fraction form
    22,218,700.87/30,660,359.65 = 12,427,446.79/x
  3. Step 3: Cross multiply
    22,218,700.87x = 30,660,359.65 × 12,427,446.79
  4. Step 4: Simplify right side
    22,218,700.87x = 381,029,988,112,638
  5. Step 5: Solve for x
    x = 381,029,988,112,638/22,218,700.87
  6. Step 6: Final answer
    x = 17,149,066.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.