Home / 132,811,240.80-199,216,861.20-81,526,965.60

Finding the Fourth Proportional to 132,811,240.80, 199,216,861.20 and 81,526,965.60

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Solution

The fourth proportional to 132,811,240.80, 199,216,861.20 and 81,526,965.60 is: 122,290,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,811,240.80 : 199,216,861.20 = 81,526,965.60 : x
  2. Step 2: Convert to fraction form
    132,811,240.80/199,216,861.20 = 81,526,965.60/x
  3. Step 3: Cross multiply
    132,811,240.80x = 199,216,861.20 × 81,526,965.60
  4. Step 4: Simplify right side
    132,811,240.80x = 16,241,546,189,992,372
  5. Step 5: Solve for x
    x = 16,241,546,189,992,372/132,811,240.80
  6. Step 6: Final answer
    x = 122,290,448.40

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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.