Home / 126,279,765.12-189,424,915.92-40,016,262.72

Finding the Fourth Proportional to 126,279,765.12, 189,424,915.92 and 40,016,262.72

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Solution

The fourth proportional to 126,279,765.12, 189,424,915.92 and 40,016,262.72 is: 60,026,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,279,765.12 : 189,424,915.92 = 40,016,262.72 : x
  2. Step 2: Convert to fraction form
    126,279,765.12/189,424,915.92 = 40,016,262.72/x
  3. Step 3: Cross multiply
    126,279,765.12x = 189,424,915.92 × 40,016,262.72
  4. Step 4: Simplify right side
    126,279,765.12x = 7,580,077,201,168,630
  5. Step 5: Solve for x
    x = 7,580,077,201,168,630/126,279,765.12
  6. Step 6: Final answer
    x = 60,026,063.51

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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.