Home / 86,015,998.40-129,023,997.60-48,188,619.20

Finding the Fourth Proportional to 86,015,998.40, 129,023,997.60 and 48,188,619.20

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Solution

The fourth proportional to 86,015,998.40, 129,023,997.60 and 48,188,619.20 is: 72,282,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015,998.40 : 129,023,997.60 = 48,188,619.20 : x
  2. Step 2: Convert to fraction form
    86,015,998.40/129,023,997.60 = 48,188,619.20/x
  3. Step 3: Cross multiply
    86,015,998.40x = 129,023,997.60 × 48,188,619.20
  4. Step 4: Simplify right side
    86,015,998.40x = 6,217,488,288,008,114
  5. Step 5: Solve for x
    x = 6,217,488,288,008,114/86,015,998.40
  6. Step 6: Final answer
    x = 72,282,928.80

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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.