Home / 71,416,041.20-98,555,216.72-40,061,040.68

Finding the Fourth Proportional to 71,416,041.20, 98,555,216.72 and 40,061,040.68

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Solution

The fourth proportional to 71,416,041.20, 98,555,216.72 and 40,061,040.68 is: 55,284,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,416,041.20 : 98,555,216.72 = 40,061,040.68 : x
  2. Step 2: Convert to fraction form
    71,416,041.20/98,555,216.72 = 40,061,040.68/x
  3. Step 3: Cross multiply
    71,416,041.20x = 98,555,216.72 × 40,061,040.68
  4. Step 4: Simplify right side
    71,416,041.20x = 3,948,224,546,517,562
  5. Step 5: Solve for x
    x = 3,948,224,546,517,562/71,416,041.20
  6. Step 6: Final answer
    x = 55,284,841.89

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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.