Home / 112,324,687.20-168,487,030.80-81,474,537.15

Finding the Fourth Proportional to 112,324,687.20, 168,487,030.80 and 81,474,537.15

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Solution

The fourth proportional to 112,324,687.20, 168,487,030.80 and 81,474,537.15 is: 122,211,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,324,687.20 : 168,487,030.80 = 81,474,537.15 : x
  2. Step 2: Convert to fraction form
    112,324,687.20/168,487,030.80 = 81,474,537.15/x
  3. Step 3: Cross multiply
    112,324,687.20x = 168,487,030.80 × 81,474,537.15
  4. Step 4: Simplify right side
    112,324,687.20x = 13,727,402,850,207,796
  5. Step 5: Solve for x
    x = 13,727,402,850,207,796/112,324,687.20
  6. Step 6: Final answer
    x = 122,211,805.73

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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.