Home / 15,231,068.28-21,018,749.82-8,261,728.38

Finding the Fourth Proportional to 15,231,068.28, 21,018,749.82 and 8,261,728.38

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Solution

The fourth proportional to 15,231,068.28, 21,018,749.82 and 8,261,728.38 is: 11,401,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231,068.28 : 21,018,749.82 = 8,261,728.38 : x
  2. Step 2: Convert to fraction form
    15,231,068.28/21,018,749.82 = 8,261,728.38/x
  3. Step 3: Cross multiply
    15,231,068.28x = 21,018,749.82 × 8,261,728.38
  4. Step 4: Simplify right side
    15,231,068.28x = 173,651,201,900,013.91
  5. Step 5: Solve for x
    x = 173,651,201,900,013.91/15,231,068.28
  6. Step 6: Final answer
    x = 11,401,117.68

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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.