Home / 80,510,538.70-120,765,808.05-67,755,954.70

Finding the Fourth Proportional to 80,510,538.70, 120,765,808.05 and 67,755,954.70

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Solution

The fourth proportional to 80,510,538.70, 120,765,808.05 and 67,755,954.70 is: 101,633,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510,538.70 : 120,765,808.05 = 67,755,954.70 : x
  2. Step 2: Convert to fraction form
    80,510,538.70/120,765,808.05 = 67,755,954.70/x
  3. Step 3: Cross multiply
    80,510,538.70x = 120,765,808.05 × 67,755,954.70
  4. Step 4: Simplify right side
    80,510,538.70x = 8,182,602,619,544,695
  5. Step 5: Solve for x
    x = 8,182,602,619,544,695/80,510,538.70
  6. Step 6: Final answer
    x = 101,633,932.05

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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.