Home / 15,021,255.52-20,729,338.16-8,145,735.76

Finding the Fourth Proportional to 15,021,255.52, 20,729,338.16 and 8,145,735.76

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Solution

The fourth proportional to 15,021,255.52, 20,729,338.16 and 8,145,735.76 is: 11,241,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021,255.52 : 20,729,338.16 = 8,145,735.76 : x
  2. Step 2: Convert to fraction form
    15,021,255.52/20,729,338.16 = 8,145,735.76/x
  3. Step 3: Cross multiply
    15,021,255.52x = 20,729,338.16 × 8,145,735.76
  4. Step 4: Simplify right side
    15,021,255.52x = 168,855,711,131,044.59
  5. Step 5: Solve for x
    x = 168,855,711,131,044.59/15,021,255.52
  6. Step 6: Final answer
    x = 11,241,118.35

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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.