Home / 15,391,863.42-21,231,516.87-10,164,919.65

Finding the Fourth Proportional to 15,391,863.42, 21,231,516.87 and 10,164,919.65

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Solution

The fourth proportional to 15,391,863.42, 21,231,516.87 and 10,164,919.65 is: 14,021,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,863.42 : 21,231,516.87 = 10,164,919.65 : x
  2. Step 2: Convert to fraction form
    15,391,863.42/21,231,516.87 = 10,164,919.65/x
  3. Step 3: Cross multiply
    15,391,863.42x = 21,231,516.87 × 10,164,919.65
  4. Step 4: Simplify right side
    15,391,863.42x = 215,816,663,031,169.50
  5. Step 5: Solve for x
    x = 215,816,663,031,169.50/15,391,863.42
  6. Step 6: Final answer
    x = 14,021,477.27

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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.