Home / 84,972,821.31-127,458,811.61-73,423,142.72

Finding the Fourth Proportional to 84,972,821.31, 127,458,811.61 and 73,423,142.72

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Solution

The fourth proportional to 84,972,821.31, 127,458,811.61 and 73,423,142.72 is: 110,134,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,972,821.31 : 127,458,811.61 = 73,423,142.72 : x
  2. Step 2: Convert to fraction form
    84,972,821.31/127,458,811.61 = 73,423,142.72/x
  3. Step 3: Cross multiply
    84,972,821.31x = 127,458,811.61 × 73,423,142.72
  4. Step 4: Simplify right side
    84,972,821.31x = 9,358,426,515,511,520
  5. Step 5: Solve for x
    x = 9,358,426,515,511,520/84,972,821.31
  6. Step 6: Final answer
    x = 110,134,350.86

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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.