Home / 15,112,616.92-20,855,179.92-8,497,211.20

Finding the Fourth Proportional to 15,112,616.92, 20,855,179.92 and 8,497,211.20

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Solution

The fourth proportional to 15,112,616.92, 20,855,179.92 and 8,497,211.20 is: 11,726,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112,616.92 : 20,855,179.92 = 8,497,211.20 : x
  2. Step 2: Convert to fraction form
    15,112,616.92/20,855,179.92 = 8,497,211.20/x
  3. Step 3: Cross multiply
    15,112,616.92x = 20,855,179.92 × 8,497,211.20
  4. Step 4: Simplify right side
    15,112,616.92x = 177,210,868,373,965.69
  5. Step 5: Solve for x
    x = 177,210,868,373,965.69/15,112,616.92
  6. Step 6: Final answer
    x = 11,726,021.33

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1.5x scale

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.