Home / 66,589,691.76-99,633,377.70-39,310,822.80

Finding the Fourth Proportional to 66,589,691.76, 99,633,377.70 and 39,310,822.80

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Solution

The fourth proportional to 66,589,691.76, 99,633,377.70 and 39,310,822.80 is: 58,817,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,589,691.76 : 99,633,377.70 = 39,310,822.80 : x
  2. Step 2: Convert to fraction form
    66,589,691.76/99,633,377.70 = 39,310,822.80/x
  3. Step 3: Cross multiply
    66,589,691.76x = 99,633,377.70 × 39,310,822.80
  4. Step 4: Simplify right side
    66,589,691.76x = 3,916,670,055,730,171.50
  5. Step 5: Solve for x
    x = 3,916,670,055,730,171.50/66,589,691.76
  6. Step 6: Final answer
    x = 58,817,963.44

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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.