Home / 20,417,101.96-28,177,586.26-15,251,495.44

Finding the Fourth Proportional to 20,417,101.96, 28,177,586.26 and 15,251,495.44

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Solution

The fourth proportional to 20,417,101.96, 28,177,586.26 and 15,251,495.44 is: 21,048,546.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,101.96 : 28,177,586.26 = 15,251,495.44 : x
  2. Step 2: Convert to fraction form
    20,417,101.96/28,177,586.26 = 15,251,495.44/x
  3. Step 3: Cross multiply
    20,417,101.96x = 28,177,586.26 × 15,251,495.44
  4. Step 4: Simplify right side
    20,417,101.96x = 429,750,328,354,596.69
  5. Step 5: Solve for x
    x = 429,750,328,354,596.69/20,417,101.96
  6. Step 6: Final answer
    x = 21,048,546.91

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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.