Home / 129,633,736.40-194,419,500.60-74,928,021.20

Finding the Fourth Proportional to 129,633,736.40, 194,419,500.60 and 74,928,021.20

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Solution

The fourth proportional to 129,633,736.40, 194,419,500.60 and 74,928,021.20 is: 112,374,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,633,736.40 : 194,419,500.60 = 74,928,021.20 : x
  2. Step 2: Convert to fraction form
    129,633,736.40/194,419,500.60 = 74,928,021.20/x
  3. Step 3: Cross multiply
    129,633,736.40x = 194,419,500.60 × 74,928,021.20
  4. Step 4: Simplify right side
    129,633,736.40x = 14,567,468,462,650,212
  5. Step 5: Solve for x
    x = 14,567,468,462,650,212/129,633,736.40
  6. Step 6: Final answer
    x = 112,374,053.75

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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.