Home / 28,656,105.40-42,984,158.10-18,452,438.20

Finding the Fourth Proportional to 28,656,105.40, 42,984,158.10 and 18,452,438.20

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Solution

The fourth proportional to 28,656,105.40, 42,984,158.10 and 18,452,438.20 is: 27,678,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656,105.40 : 42,984,158.10 = 18,452,438.20 : x
  2. Step 2: Convert to fraction form
    28,656,105.40/42,984,158.10 = 18,452,438.20/x
  3. Step 3: Cross multiply
    28,656,105.40x = 42,984,158.10 × 18,452,438.20
  4. Step 4: Simplify right side
    28,656,105.40x = 793,162,520,919,279.38
  5. Step 5: Solve for x
    x = 793,162,520,919,279.38/28,656,105.40
  6. Step 6: Final answer
    x = 27,678,657.30

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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.