Home / 81,607,200.60-122,477,723.10-80,969,471.40

Finding the Fourth Proportional to 81,607,200.60, 122,477,723.10 and 80,969,471.40

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Solution

The fourth proportional to 81,607,200.60, 122,477,723.10 and 80,969,471.40 is: 121,520,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,607,200.60 : 122,477,723.10 = 80,969,471.40 : x
  2. Step 2: Convert to fraction form
    81,607,200.60/122,477,723.10 = 80,969,471.40/x
  3. Step 3: Cross multiply
    81,607,200.60x = 122,477,723.10 × 80,969,471.40
  4. Step 4: Simplify right side
    81,607,200.60x = 9,916,956,497,682,570
  5. Step 5: Solve for x
    x = 9,916,956,497,682,570/81,607,200.60
  6. Step 6: Final answer
    x = 121,520,606.33

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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.