Home / 227,083,909.31-313,375,920.78-122,661,981.20

Finding the Fourth Proportional to 227,083,909.31, 313,375,920.78 and 122,661,981.20

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Solution

The fourth proportional to 227,083,909.31, 313,375,920.78 and 122,661,981.20 is: 169,273,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,083,909.31 : 313,375,920.78 = 122,661,981.20 : x
  2. Step 2: Convert to fraction form
    227,083,909.31/313,375,920.78 = 122,661,981.20/x
  3. Step 3: Cross multiply
    227,083,909.31x = 313,375,920.78 × 122,661,981.20
  4. Step 4: Simplify right side
    227,083,909.31x = 38,439,311,301,682,160
  5. Step 5: Solve for x
    x = 38,439,311,301,682,160/227,083,909.31
  6. Step 6: Final answer
    x = 169,273,602.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.