Home / 15,414,674.72-21,223,719.12-13,086,963.20

Finding the Fourth Proportional to 15,414,674.72, 21,223,719.12 and 13,086,963.20

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Solution

The fourth proportional to 15,414,674.72, 21,223,719.12 and 13,086,963.20 is: 18,018,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414,674.72 : 21,223,719.12 = 13,086,963.20 : x
  2. Step 2: Convert to fraction form
    15,414,674.72/21,223,719.12 = 13,086,963.20/x
  3. Step 3: Cross multiply
    15,414,674.72x = 21,223,719.12 × 13,086,963.20
  4. Step 4: Simplify right side
    15,414,674.72x = 277,754,031,090,576.38
  5. Step 5: Solve for x
    x = 277,754,031,090,576.38/15,414,674.72
  6. Step 6: Final answer
    x = 18,018,805.85

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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.