Home / 13,053,137.76-18,013,651.92-7,172,724

Finding the Fourth Proportional to 13,053,137.76, 18,013,651.92 and 7,172,724

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Solution

The fourth proportional to 13,053,137.76, 18,013,651.92 and 7,172,724 is: 9,898,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053,137.76 : 18,013,651.92 = 7,172,724 : x
  2. Step 2: Convert to fraction form
    13,053,137.76/18,013,651.92 = 7,172,724/x
  3. Step 3: Cross multiply
    13,053,137.76x = 18,013,651.92 × 7,172,724
  4. Step 4: Simplify right side
    13,053,137.76x = 129,206,953,454,230.09
  5. Step 5: Solve for x
    x = 129,206,953,454,230.09/13,053,137.76
  6. Step 6: Final answer
    x = 9,898,535.96

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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.