Home / 18,388,113.57-25,375,595.52-10,657,639.92

Finding the Fourth Proportional to 18,388,113.57, 25,375,595.52 and 10,657,639.92

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Solution

The fourth proportional to 18,388,113.57, 25,375,595.52 and 10,657,639.92 is: 14,707,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388,113.57 : 25,375,595.52 = 10,657,639.92 : x
  2. Step 2: Convert to fraction form
    18,388,113.57/25,375,595.52 = 10,657,639.92/x
  3. Step 3: Cross multiply
    18,388,113.57x = 25,375,595.52 × 10,657,639.92
  4. Step 4: Simplify right side
    18,388,113.57x = 270,443,959,942,849.78
  5. Step 5: Solve for x
    x = 270,443,959,942,849.78/18,388,113.57
  6. Step 6: Final answer
    x = 14,707,542.40

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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.