Home / 81,044,379.39-112,029,734.73-72,310,395.69

Finding the Fourth Proportional to 81,044,379.39, 112,029,734.73 and 72,310,395.69

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Solution

The fourth proportional to 81,044,379.39, 112,029,734.73 and 72,310,395.69 is: 99,956,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,044,379.39 : 112,029,734.73 = 72,310,395.69 : x
  2. Step 2: Convert to fraction form
    81,044,379.39/112,029,734.73 = 72,310,395.69/x
  3. Step 3: Cross multiply
    81,044,379.39x = 112,029,734.73 × 72,310,395.69
  4. Step 4: Simplify right side
    81,044,379.39x = 8,100,914,447,372,035
  5. Step 5: Solve for x
    x = 8,100,914,447,372,035/81,044,379.39
  6. Step 6: Final answer
    x = 99,956,523.92

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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.