Home / 132,856,359.90-199,368,520.65-78,268,839.90

Finding the Fourth Proportional to 132,856,359.90, 199,368,520.65 and 78,268,839.90

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Solution

The fourth proportional to 132,856,359.90, 199,368,520.65 and 78,268,839.90 is: 117,452,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856,359.90 : 199,368,520.65 = 78,268,839.90 : x
  2. Step 2: Convert to fraction form
    132,856,359.90/199,368,520.65 = 78,268,839.90/x
  3. Step 3: Cross multiply
    132,856,359.90x = 199,368,520.65 × 78,268,839.90
  4. Step 4: Simplify right side
    132,856,359.90x = 15,604,342,823,854,696
  5. Step 5: Solve for x
    x = 15,604,342,823,854,696/132,856,359.90
  6. Step 6: Final answer
    x = 117,452,734.94

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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.