Home / 18,718,648.97-28,059,373.01-13,026,915.87

Finding the Fourth Proportional to 18,718,648.97, 28,059,373.01 and 13,026,915.87

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Solution

The fourth proportional to 18,718,648.97, 28,059,373.01 and 13,026,915.87 is: 19,527,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718,648.97 : 28,059,373.01 = 13,026,915.87 : x
  2. Step 2: Convert to fraction form
    18,718,648.97/28,059,373.01 = 13,026,915.87/x
  3. Step 3: Cross multiply
    18,718,648.97x = 28,059,373.01 × 13,026,915.87
  4. Step 4: Simplify right side
    18,718,648.97x = 365,527,091,566,218.69
  5. Step 5: Solve for x
    x = 365,527,091,566,218.69/18,718,648.97
  6. Step 6: Final answer
    x = 19,527,429.15

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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.