Home / 8,691,346.70-13,037,020.05-5,458,085.90

Finding the Fourth Proportional to 8,691,346.70, 13,037,020.05 and 5,458,085.90

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Solution

The fourth proportional to 8,691,346.70, 13,037,020.05 and 5,458,085.90 is: 8,187,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,346.70 : 13,037,020.05 = 5,458,085.90 : x
  2. Step 2: Convert to fraction form
    8,691,346.70/13,037,020.05 = 5,458,085.90/x
  3. Step 3: Cross multiply
    8,691,346.70x = 13,037,020.05 × 5,458,085.90
  4. Step 4: Simplify right side
    8,691,346.70x = 71,157,175,312,922.30
  5. Step 5: Solve for x
    x = 71,157,175,312,922.30/8,691,346.70
  6. Step 6: Final answer
    x = 8,187,128.85

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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.