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Finding the Fourth Proportional to 299,560,654.80, 449,340,982.20 and 72,625,870.80

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Solution

The fourth proportional to 299,560,654.80, 449,340,982.20 and 72,625,870.80 is: 108,938,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,560,654.80 : 449,340,982.20 = 72,625,870.80 : x
  2. Step 2: Convert to fraction form
    299,560,654.80/449,340,982.20 = 72,625,870.80/x
  3. Step 3: Cross multiply
    299,560,654.80x = 449,340,982.20 × 72,625,870.80
  4. Step 4: Simplify right side
    299,560,654.80x = 32,633,780,118,402,296
  5. Step 5: Solve for x
    x = 32,633,780,118,402,296/299,560,654.80
  6. Step 6: Final answer
    x = 108,938,806.20

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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.