Home / 20,310,731.28-30,473,681.04-8,183,635.20

Finding the Fourth Proportional to 20,310,731.28, 30,473,681.04 and 8,183,635.20

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Solution

The fourth proportional to 20,310,731.28, 30,473,681.04 and 8,183,635.20 is: 12,278,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,731.28 : 30,473,681.04 = 8,183,635.20 : x
  2. Step 2: Convert to fraction form
    20,310,731.28/30,473,681.04 = 8,183,635.20/x
  3. Step 3: Cross multiply
    20,310,731.28x = 30,473,681.04 × 8,183,635.20
  4. Step 4: Simplify right side
    20,310,731.28x = 249,385,488,832,516.59
  5. Step 5: Solve for x
    x = 249,385,488,832,516.59/20,310,731.28
  6. Step 6: Final answer
    x = 12,278,508.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.