Home / 15,391,866.92-21,231,521.70-10,164,923.16

Finding the Fourth Proportional to 15,391,866.92, 21,231,521.70 and 10,164,923.16

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Solution

The fourth proportional to 15,391,866.92, 21,231,521.70 and 10,164,923.16 is: 14,021,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,866.92 : 21,231,521.70 = 10,164,923.16 : x
  2. Step 2: Convert to fraction form
    15,391,866.92/21,231,521.70 = 10,164,923.16/x
  3. Step 3: Cross multiply
    15,391,866.92x = 21,231,521.70 × 10,164,923.16
  4. Step 4: Simplify right side
    15,391,866.92x = 215,816,786,650,372.56
  5. Step 5: Solve for x
    x = 215,816,786,650,372.56/15,391,866.92
  6. Step 6: Final answer
    x = 14,021,482.11

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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.