Home / 28,519,691.76-39,356,906.76-15,467,238.72

Finding the Fourth Proportional to 28,519,691.76, 39,356,906.76 and 15,467,238.72

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Solution

The fourth proportional to 28,519,691.76, 39,356,906.76 and 15,467,238.72 is: 21,344,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519,691.76 : 39,356,906.76 = 15,467,238.72 : x
  2. Step 2: Convert to fraction form
    28,519,691.76/39,356,906.76 = 15,467,238.72/x
  3. Step 3: Cross multiply
    28,519,691.76x = 39,356,906.76 × 15,467,238.72
  4. Step 4: Simplify right side
    28,519,691.76x = 608,742,672,137,701.75
  5. Step 5: Solve for x
    x = 608,742,672,137,701.75/28,519,691.76
  6. Step 6: Final answer
    x = 21,344,644.16

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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.