Home / 14,704,037.28-20,292,131.29-8,178,138.63

Finding the Fourth Proportional to 14,704,037.28, 20,292,131.29 and 8,178,138.63

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Solution

The fourth proportional to 14,704,037.28, 20,292,131.29 and 8,178,138.63 is: 11,286,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704,037.28 : 20,292,131.29 = 8,178,138.63 : x
  2. Step 2: Convert to fraction form
    14,704,037.28/20,292,131.29 = 8,178,138.63/x
  3. Step 3: Cross multiply
    14,704,037.28x = 20,292,131.29 × 8,178,138.63
  4. Step 4: Simplify right side
    14,704,037.28x = 165,951,862,787,780.72
  5. Step 5: Solve for x
    x = 165,951,862,787,780.72/14,704,037.28
  6. Step 6: Final answer
    x = 11,286,142.69

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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.