Home / 202,146,349.11-278,961,959.60-109,326,856.95

Finding the Fourth Proportional to 202,146,349.11, 278,961,959.60 and 109,326,856.95

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Solution

The fourth proportional to 202,146,349.11, 278,961,959.60 and 109,326,856.95 is: 150,871,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,146,349.11 : 278,961,959.60 = 109,326,856.95 : x
  2. Step 2: Convert to fraction form
    202,146,349.11/278,961,959.60 = 109,326,856.95/x
  3. Step 3: Cross multiply
    202,146,349.11x = 278,961,959.60 × 109,326,856.95
  4. Step 4: Simplify right side
    202,146,349.11x = 30,498,034,251,680,884
  5. Step 5: Solve for x
    x = 30,498,034,251,680,884/202,146,349.11
  6. Step 6: Final answer
    x = 150,871,061.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.