Home / 121,311,208.20-181,966,812.30-75,394,705.80

Finding the Fourth Proportional to 121,311,208.20, 181,966,812.30 and 75,394,705.80

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Solution

The fourth proportional to 121,311,208.20, 181,966,812.30 and 75,394,705.80 is: 113,092,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311,208.20 : 181,966,812.30 = 75,394,705.80 : x
  2. Step 2: Convert to fraction form
    121,311,208.20/181,966,812.30 = 75,394,705.80/x
  3. Step 3: Cross multiply
    121,311,208.20x = 181,966,812.30 × 75,394,705.80
  4. Step 4: Simplify right side
    121,311,208.20x = 13,719,334,278,722,322
  5. Step 5: Solve for x
    x = 13,719,334,278,722,322/121,311,208.20
  6. Step 6: Final answer
    x = 113,092,058.70

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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.