Home / 15,391,862.92-21,231,516.18-10,164,919.15

Finding the Fourth Proportional to 15,391,862.92, 21,231,516.18 and 10,164,919.15

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Solution

The fourth proportional to 15,391,862.92, 21,231,516.18 and 10,164,919.15 is: 14,021,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,862.92 : 21,231,516.18 = 10,164,919.15 : x
  2. Step 2: Convert to fraction form
    15,391,862.92/21,231,516.18 = 10,164,919.15/x
  3. Step 3: Cross multiply
    15,391,862.92x = 21,231,516.18 × 10,164,919.15
  4. Step 4: Simplify right side
    15,391,862.92x = 215,816,645,401,616.84
  5. Step 5: Solve for x
    x = 215,816,645,401,616.84/15,391,862.92
  6. Step 6: Final answer
    x = 14,021,476.58

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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.