Home / 80,751,682.80-121,127,524.20-74,516,108.40

Finding the Fourth Proportional to 80,751,682.80, 121,127,524.20 and 74,516,108.40

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Solution

The fourth proportional to 80,751,682.80, 121,127,524.20 and 74,516,108.40 is: 111,774,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751,682.80 : 121,127,524.20 = 74,516,108.40 : x
  2. Step 2: Convert to fraction form
    80,751,682.80/121,127,524.20 = 74,516,108.40/x
  3. Step 3: Cross multiply
    80,751,682.80x = 121,127,524.20 × 74,516,108.40
  4. Step 4: Simplify right side
    80,751,682.80x = 9,025,951,723,510,824
  5. Step 5: Solve for x
    x = 9,025,951,723,510,824/80,751,682.80
  6. Step 6: Final answer
    x = 111,774,162.60

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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.