Home / 15,391,861.92-21,231,514.80-10,164,918.15

Finding the Fourth Proportional to 15,391,861.92, 21,231,514.80 and 10,164,918.15

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Solution

The fourth proportional to 15,391,861.92, 21,231,514.80 and 10,164,918.15 is: 14,021,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,861.92 : 21,231,514.80 = 10,164,918.15 : x
  2. Step 2: Convert to fraction form
    15,391,861.92/21,231,514.80 = 10,164,918.15/x
  3. Step 3: Cross multiply
    15,391,861.92x = 21,231,514.80 × 10,164,918.15
  4. Step 4: Simplify right side
    15,391,861.92x = 215,816,610,142,513.62
  5. Step 5: Solve for x
    x = 215,816,610,142,513.62/15,391,861.92
  6. Step 6: Final answer
    x = 14,021,475.20

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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.