Home / 67,165,432.20-100,755,348.12-18,643,491.72

Finding the Fourth Proportional to 67,165,432.20, 100,755,348.12 and 18,643,491.72

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Solution

The fourth proportional to 67,165,432.20, 100,755,348.12 and 18,643,491.72 is: 27,967,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,165,432.20 : 100,755,348.12 = 18,643,491.72 : x
  2. Step 2: Convert to fraction form
    67,165,432.20/100,755,348.12 = 18,643,491.72/x
  3. Step 3: Cross multiply
    67,165,432.20x = 100,755,348.12 × 18,643,491.72
  4. Step 4: Simplify right side
    67,165,432.20x = 1,878,431,498,420,937.50
  5. Step 5: Solve for x
    x = 1,878,431,498,420,937.50/67,165,432.20
  6. Step 6: Final answer
    x = 27,967,236.08

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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.