Home / 20,491,331.73-28,278,622.98-11,199,417.54

Finding the Fourth Proportional to 20,491,331.73, 28,278,622.98 and 11,199,417.54

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Solution

The fourth proportional to 20,491,331.73, 28,278,622.98 and 11,199,417.54 is: 15,455,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491,331.73 : 28,278,622.98 = 11,199,417.54 : x
  2. Step 2: Convert to fraction form
    20,491,331.73/28,278,622.98 = 11,199,417.54/x
  3. Step 3: Cross multiply
    20,491,331.73x = 28,278,622.98 × 11,199,417.54
  4. Step 4: Simplify right side
    20,491,331.73x = 316,704,106,209,259.06
  5. Step 5: Solve for x
    x = 316,704,106,209,259.06/20,491,331.73
  6. Step 6: Final answer
    x = 15,455,516.04

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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.