Home / 126,279,772.12-189,424,926.42-40,016,269.72

Finding the Fourth Proportional to 126,279,772.12, 189,424,926.42 and 40,016,269.72

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Solution

The fourth proportional to 126,279,772.12, 189,424,926.42 and 40,016,269.72 is: 60,026,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279,772.12 : 189,424,926.42 = 40,016,269.72 : x
  2. Step 2: Convert to fraction form
    126,279,772.12/189,424,926.42 = 40,016,269.72/x
  3. Step 3: Cross multiply
    126,279,772.12x = 189,424,926.42 × 40,016,269.72
  4. Step 4: Simplify right side
    126,279,772.12x = 7,580,078,947,313,873
  5. Step 5: Solve for x
    x = 7,580,078,947,313,873/126,279,772.12
  6. Step 6: Final answer
    x = 60,026,074.01

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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.