Home / 12,451,455.60-18,638,876.25-8,124,188.15

Finding the Fourth Proportional to 12,451,455.60, 18,638,876.25 and 8,124,188.15

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Solution

The fourth proportional to 12,451,455.60, 18,638,876.25 and 8,124,188.15 is: 12,161,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,455.60 : 18,638,876.25 = 8,124,188.15 : x
  2. Step 2: Convert to fraction form
    12,451,455.60/18,638,876.25 = 8,124,188.15/x
  3. Step 3: Cross multiply
    12,451,455.60x = 18,638,876.25 × 8,124,188.15
  4. Step 4: Simplify right side
    12,451,455.60x = 151,425,737,466,372.06
  5. Step 5: Solve for x
    x = 151,425,737,466,372.06/12,451,455.60
  6. Step 6: Final answer
    x = 12,161,287.99

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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.