Home / 121,025,089.80-180,593,709.03-107,981,575.79

Finding the Fourth Proportional to 121,025,089.80, 180,593,709.03 and 107,981,575.79

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Solution

The fourth proportional to 121,025,089.80, 180,593,709.03 and 107,981,575.79 is: 161,130,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,025,089.80 : 180,593,709.03 = 107,981,575.79 : x
  2. Step 2: Convert to fraction form
    121,025,089.80/180,593,709.03 = 107,981,575.79/x
  3. Step 3: Cross multiply
    121,025,089.80x = 180,593,709.03 × 107,981,575.79
  4. Step 4: Simplify right side
    121,025,089.80x = 19,500,793,277,917,184
  5. Step 5: Solve for x
    x = 19,500,793,277,917,184/121,025,089.80
  6. Step 6: Final answer
    x = 161,130,169.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.