Home / 20,577,987.28-28,393,022.57-11,754,618.13

Finding the Fourth Proportional to 20,577,987.28, 28,393,022.57 and 11,754,618.13

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Solution

The fourth proportional to 20,577,987.28, 28,393,022.57 and 11,754,618.13 is: 16,218,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,987.28 : 28,393,022.57 = 11,754,618.13 : x
  2. Step 2: Convert to fraction form
    20,577,987.28/28,393,022.57 = 11,754,618.13/x
  3. Step 3: Cross multiply
    20,577,987.28x = 28,393,022.57 × 11,754,618.13
  4. Step 4: Simplify right side
    20,577,987.28x = 333,749,137,836,672.81
  5. Step 5: Solve for x
    x = 333,749,137,836,672.81/20,577,987.28
  6. Step 6: Final answer
    x = 16,218,745.47

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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.