Home / 13,545,882.56-18,693,330.60-7,744,785.78

Finding the Fourth Proportional to 13,545,882.56, 18,693,330.60 and 7,744,785.78

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Solution

The fourth proportional to 13,545,882.56, 18,693,330.60 and 7,744,785.78 is: 10,687,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,882.56 : 18,693,330.60 = 7,744,785.78 : x
  2. Step 2: Convert to fraction form
    13,545,882.56/18,693,330.60 = 7,744,785.78/x
  3. Step 3: Cross multiply
    13,545,882.56x = 18,693,330.60 × 7,744,785.78
  4. Step 4: Simplify right side
    13,545,882.56x = 144,775,841,011,718.88
  5. Step 5: Solve for x
    x = 144,775,841,011,718.88/13,545,882.56
  6. Step 6: Final answer
    x = 10,687,811.62

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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.