Home / 78,664,453.80-108,557,401.20-43,859,311.08

Finding the Fourth Proportional to 78,664,453.80, 108,557,401.20 and 43,859,311.08

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Solution

The fourth proportional to 78,664,453.80, 108,557,401.20 and 43,859,311.08 is: 60,526,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,664,453.80 : 108,557,401.20 = 43,859,311.08 : x
  2. Step 2: Convert to fraction form
    78,664,453.80/108,557,401.20 = 43,859,311.08/x
  3. Step 3: Cross multiply
    78,664,453.80x = 108,557,401.20 × 43,859,311.08
  4. Step 4: Simplify right side
    78,664,453.80x = 4,761,252,829,267,165
  5. Step 5: Solve for x
    x = 4,761,252,829,267,165/78,664,453.80
  6. Step 6: Final answer
    x = 60,526,102.95

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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.