Home / 8,691,339.70-13,037,009.55-5,458,078.90

Finding the Fourth Proportional to 8,691,339.70, 13,037,009.55 and 5,458,078.90

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Solution

The fourth proportional to 8,691,339.70, 13,037,009.55 and 5,458,078.90 is: 8,187,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,339.70 : 13,037,009.55 = 5,458,078.90 : x
  2. Step 2: Convert to fraction form
    8,691,339.70/13,037,009.55 = 5,458,078.90/x
  3. Step 3: Cross multiply
    8,691,339.70x = 13,037,009.55 × 5,458,078.90
  4. Step 4: Simplify right side
    8,691,339.70x = 71,157,026,743,953.50
  5. Step 5: Solve for x
    x = 71,157,026,743,953.50/8,691,339.70
  6. Step 6: Final answer
    x = 8,187,118.35

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Similar ratio
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1.5x scale

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.