Home / 21,317,956.80-29,428,387.68-13,593,382.08

Finding the Fourth Proportional to 21,317,956.80, 29,428,387.68 and 13,593,382.08

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Solution

The fourth proportional to 21,317,956.80, 29,428,387.68 and 13,593,382.08 is: 18,764,993.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317,956.80 : 29,428,387.68 = 13,593,382.08 : x
  2. Step 2: Convert to fraction form
    21,317,956.80/29,428,387.68 = 13,593,382.08/x
  3. Step 3: Cross multiply
    21,317,956.80x = 29,428,387.68 × 13,593,382.08
  4. Step 4: Simplify right side
    21,317,956.80x = 400,031,317,732,604.75
  5. Step 5: Solve for x
    x = 400,031,317,732,604.75/21,317,956.80
  6. Step 6: Final answer
    x = 18,764,993.36

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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.