Home / 131,048,801.38-180,912,821.25-81,505,146.52

Finding the Fourth Proportional to 131,048,801.38, 180,912,821.25 and 81,505,146.52

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Solution

The fourth proportional to 131,048,801.38, 180,912,821.25 and 81,505,146.52 is: 112,517,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,048,801.38 : 180,912,821.25 = 81,505,146.52 : x
  2. Step 2: Convert to fraction form
    131,048,801.38/180,912,821.25 = 81,505,146.52/x
  3. Step 3: Cross multiply
    131,048,801.38x = 180,912,821.25 × 81,505,146.52
  4. Step 4: Simplify right side
    131,048,801.38x = 14,745,326,003,327,818
  5. Step 5: Solve for x
    x = 14,745,326,003,327,818/131,048,801.38
  6. Step 6: Final answer
    x = 112,517,824.26

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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.