Home / 20,956,534.24-28,904,428.16-18,504,819.76

Finding the Fourth Proportional to 20,956,534.24, 28,904,428.16 and 18,504,819.76

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Solution

The fourth proportional to 20,956,534.24, 28,904,428.16 and 18,504,819.76 is: 25,522,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,534.24 : 28,904,428.16 = 18,504,819.76 : x
  2. Step 2: Convert to fraction form
    20,956,534.24/28,904,428.16 = 18,504,819.76/x
  3. Step 3: Cross multiply
    20,956,534.24x = 28,904,428.16 × 18,504,819.76
  4. Step 4: Simplify right side
    20,956,534.24x = 534,871,233,366,668.50
  5. Step 5: Solve for x
    x = 534,871,233,366,668.50/20,956,534.24
  6. Step 6: Final answer
    x = 25,522,885.95

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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.