Home / 20,531,251.35-30,785,830.65-8,229,041.10

Finding the Fourth Proportional to 20,531,251.35, 30,785,830.65 and 8,229,041.10

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Solution

The fourth proportional to 20,531,251.35, 30,785,830.65 and 8,229,041.10 is: 12,339,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531,251.35 : 30,785,830.65 = 8,229,041.10 : x
  2. Step 2: Convert to fraction form
    20,531,251.35/30,785,830.65 = 8,229,041.10/x
  3. Step 3: Cross multiply
    20,531,251.35x = 30,785,830.65 × 8,229,041.10
  4. Step 4: Simplify right side
    20,531,251.35x = 253,337,865,716,489.69
  5. Step 5: Solve for x
    x = 253,337,865,716,489.69/20,531,251.35
  6. Step 6: Final answer
    x = 12,339,134.20

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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.