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Finding the Fourth Proportional to 82,794,770.40, 124,416,104.40 and 72,941,023.20

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Solution

The fourth proportional to 82,794,770.40, 124,416,104.40 and 72,941,023.20 is: 109,608,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,794,770.40 : 124,416,104.40 = 72,941,023.20 : x
  2. Step 2: Convert to fraction form
    82,794,770.40/124,416,104.40 = 72,941,023.20/x
  3. Step 3: Cross multiply
    82,794,770.40x = 124,416,104.40 × 72,941,023.20
  4. Step 4: Simplify right side
    82,794,770.40x = 9,075,037,957,494,022
  5. Step 5: Solve for x
    x = 9,075,037,957,494,022/82,794,770.40
  6. Step 6: Final answer
    x = 109,608,830.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.