Home / 80,974,540.08-111,728,355.21-47,918,245.28

Finding the Fourth Proportional to 80,974,540.08, 111,728,355.21 and 47,918,245.28

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Solution

The fourth proportional to 80,974,540.08, 111,728,355.21 and 47,918,245.28 is: 66,117,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,974,540.08 : 111,728,355.21 = 47,918,245.28 : x
  2. Step 2: Convert to fraction form
    80,974,540.08/111,728,355.21 = 47,918,245.28/x
  3. Step 3: Cross multiply
    80,974,540.08x = 111,728,355.21 × 47,918,245.28
  4. Step 4: Simplify right side
    80,974,540.08x = 5,353,826,729,125,104
  5. Step 5: Solve for x
    x = 5,353,826,729,125,104/80,974,540.08
  6. Step 6: Final answer
    x = 66,117,408.31

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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.