Home / 15,218,160.30-21,001,866.03-8,342,932.14

Finding the Fourth Proportional to 15,218,160.30, 21,001,866.03 and 8,342,932.14

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Solution

The fourth proportional to 15,218,160.30, 21,001,866.03 and 8,342,932.14 is: 11,513,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,160.30 : 21,001,866.03 = 8,342,932.14 : x
  2. Step 2: Convert to fraction form
    15,218,160.30/21,001,866.03 = 8,342,932.14/x
  3. Step 3: Cross multiply
    15,218,160.30x = 21,001,866.03 × 8,342,932.14
  4. Step 4: Simplify right side
    15,218,160.30x = 175,217,143,101,661.22
  5. Step 5: Solve for x
    x = 175,217,143,101,661.22/15,218,160.30
  6. Step 6: Final answer
    x = 11,513,687.57

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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.