Home / 15,231,069.28-21,018,751.20-8,261,729.38

Finding the Fourth Proportional to 15,231,069.28, 21,018,751.20 and 8,261,729.38

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Solution

The fourth proportional to 15,231,069.28, 21,018,751.20 and 8,261,729.38 is: 11,401,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231,069.28 : 21,018,751.20 = 8,261,729.38 : x
  2. Step 2: Convert to fraction form
    15,231,069.28/21,018,751.20 = 8,261,729.38/x
  3. Step 3: Cross multiply
    15,231,069.28x = 21,018,751.20 × 8,261,729.38
  4. Step 4: Simplify right side
    15,231,069.28x = 173,651,234,319,950.25
  5. Step 5: Solve for x
    x = 173,651,234,319,950.25/15,231,069.28
  6. Step 6: Final answer
    x = 11,401,119.06

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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.