Home / 15,342,171.12-21,172,691.39-8,726,589.45

Finding the Fourth Proportional to 15,342,171.12, 21,172,691.39 and 8,726,589.45

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Solution

The fourth proportional to 15,342,171.12, 21,172,691.39 and 8,726,589.45 is: 12,042,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342,171.12 : 21,172,691.39 = 8,726,589.45 : x
  2. Step 2: Convert to fraction form
    15,342,171.12/21,172,691.39 = 8,726,589.45/x
  3. Step 3: Cross multiply
    15,342,171.12x = 21,172,691.39 × 8,726,589.45
  4. Step 4: Simplify right side
    15,342,171.12x = 184,765,385,268,446.88
  5. Step 5: Solve for x
    x = 184,765,385,268,446.88/15,342,171.12
  6. Step 6: Final answer
    x = 12,042,975.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.