Home / 18,815,723.60-28,218,125.88-7,885,627.63

Finding the Fourth Proportional to 18,815,723.60, 28,218,125.88 and 7,885,627.63

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Solution

The fourth proportional to 18,815,723.60, 28,218,125.88 and 7,885,627.63 is: 11,826,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815,723.60 : 28,218,125.88 = 7,885,627.63 : x
  2. Step 2: Convert to fraction form
    18,815,723.60/28,218,125.88 = 7,885,627.63/x
  3. Step 3: Cross multiply
    18,815,723.60x = 28,218,125.88 × 7,885,627.63
  4. Step 4: Simplify right side
    18,815,723.60x = 222,517,633,035,600.75
  5. Step 5: Solve for x
    x = 222,517,633,035,600.75/18,815,723.60
  6. Step 6: Final answer
    x = 11,826,153.37

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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.