Home / 12,458,078.60-18,687,117.90-9,269,432.60

Finding the Fourth Proportional to 12,458,078.60, 18,687,117.90 and 9,269,432.60

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Solution

The fourth proportional to 12,458,078.60, 18,687,117.90 and 9,269,432.60 is: 13,904,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,078.60 : 18,687,117.90 = 9,269,432.60 : x
  2. Step 2: Convert to fraction form
    12,458,078.60/18,687,117.90 = 9,269,432.60/x
  3. Step 3: Cross multiply
    12,458,078.60x = 18,687,117.90 × 9,269,432.60
  4. Step 4: Simplify right side
    12,458,078.60x = 173,218,979,862,303.53
  5. Step 5: Solve for x
    x = 173,218,979,862,303.53/12,458,078.60
  6. Step 6: Final answer
    x = 13,904,148.90

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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.