Home / 20,561,889.60-28,375,572-11,394,684.48

Finding the Fourth Proportional to 20,561,889.60, 28,375,572 and 11,394,684.48

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Solution

The fourth proportional to 20,561,889.60, 28,375,572 and 11,394,684.48 is: 15,724,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,889.60 : 28,375,572 = 11,394,684.48 : x
  2. Step 2: Convert to fraction form
    20,561,889.60/28,375,572 = 11,394,684.48/x
  3. Step 3: Cross multiply
    20,561,889.60x = 28,375,572 × 11,394,684.48
  4. Step 4: Simplify right side
    20,561,889.60x = 323,330,689,879,522.56
  5. Step 5: Solve for x
    x = 323,330,689,879,522.56/20,561,889.60
  6. Step 6: Final answer
    x = 15,724,755.66

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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.