Home / 83,093,781.67-124,640,505.37-78,037,263.61

Finding the Fourth Proportional to 83,093,781.67, 124,640,505.37 and 78,037,263.61

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Solution

The fourth proportional to 83,093,781.67, 124,640,505.37 and 78,037,263.61 is: 117,055,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,093,781.67 : 124,640,505.37 = 78,037,263.61 : x
  2. Step 2: Convert to fraction form
    83,093,781.67/124,640,505.37 = 78,037,263.61/x
  3. Step 3: Cross multiply
    83,093,781.67x = 124,640,505.37 × 78,037,263.61
  4. Step 4: Simplify right side
    83,093,781.67x = 9,726,603,973,028,922
  5. Step 5: Solve for x
    x = 9,726,603,973,028,922/83,093,781.67
  6. Step 6: Final answer
    x = 117,055,738.45

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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.