Home / 131,328,077.40-196,992,116.10-121,772,928.60

Finding the Fourth Proportional to 131,328,077.40, 196,992,116.10 and 121,772,928.60

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Solution

The fourth proportional to 131,328,077.40, 196,992,116.10 and 121,772,928.60 is: 182,659,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328,077.40 : 196,992,116.10 = 121,772,928.60 : x
  2. Step 2: Convert to fraction form
    131,328,077.40/196,992,116.10 = 121,772,928.60/x
  3. Step 3: Cross multiply
    131,328,077.40x = 196,992,116.10 × 121,772,928.60
  4. Step 4: Simplify right side
    131,328,077.40x = 23,988,306,888,608,208
  5. Step 5: Solve for x
    x = 23,988,306,888,608,208/131,328,077.40
  6. Step 6: Final answer
    x = 182,659,392.90

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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.