Home / 15,756,965.12-23,635,454.16-12,167,978.24

Finding the Fourth Proportional to 15,756,965.12, 23,635,454.16 and 12,167,978.24

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Solution

The fourth proportional to 15,756,965.12, 23,635,454.16 and 12,167,978.24 is: 18,251,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756,965.12 : 23,635,454.16 = 12,167,978.24 : x
  2. Step 2: Convert to fraction form
    15,756,965.12/23,635,454.16 = 12,167,978.24/x
  3. Step 3: Cross multiply
    15,756,965.12x = 23,635,454.16 × 12,167,978.24
  4. Step 4: Simplify right side
    15,756,965.12x = 287,595,691,911,397.50
  5. Step 5: Solve for x
    x = 287,595,691,911,397.50/15,756,965.12
  6. Step 6: Final answer
    x = 18,251,972.36

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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.