Home / 15,391,862.42-21,231,515.49-10,164,918.65

Finding the Fourth Proportional to 15,391,862.42, 21,231,515.49 and 10,164,918.65

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Solution

The fourth proportional to 15,391,862.42, 21,231,515.49 and 10,164,918.65 is: 14,021,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,862.42 : 21,231,515.49 = 10,164,918.65 : x
  2. Step 2: Convert to fraction form
    15,391,862.42/21,231,515.49 = 10,164,918.65/x
  3. Step 3: Cross multiply
    15,391,862.42x = 21,231,515.49 × 10,164,918.65
  4. Step 4: Simplify right side
    15,391,862.42x = 215,816,627,772,064.88
  5. Step 5: Solve for x
    x = 215,816,627,772,064.88/15,391,862.42
  6. Step 6: Final answer
    x = 14,021,475.89

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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.