Home / 99,743,833.20-149,296,885.20-71,046,019.20

Finding the Fourth Proportional to 99,743,833.20, 149,296,885.20 and 71,046,019.20

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Solution

The fourth proportional to 99,743,833.20, 149,296,885.20 and 71,046,019.20 is: 106,341,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,743,833.20 : 149,296,885.20 = 71,046,019.20 : x
  2. Step 2: Convert to fraction form
    99,743,833.20/149,296,885.20 = 71,046,019.20/x
  3. Step 3: Cross multiply
    99,743,833.20x = 149,296,885.20 × 71,046,019.20
  4. Step 4: Simplify right side
    99,743,833.20x = 10,606,949,372,419,396
  5. Step 5: Solve for x
    x = 10,606,949,372,419,396/99,743,833.20
  6. Step 6: Final answer
    x = 106,341,906.38

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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.