Home / 121,278,081.15-181,917,121.73-48,458,854.35

Finding the Fourth Proportional to 121,278,081.15, 181,917,121.73 and 48,458,854.35

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Solution

The fourth proportional to 121,278,081.15, 181,917,121.73 and 48,458,854.35 is: 72,688,281.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278,081.15 : 181,917,121.73 = 48,458,854.35 : x
  2. Step 2: Convert to fraction form
    121,278,081.15/181,917,121.73 = 48,458,854.35/x
  3. Step 3: Cross multiply
    121,278,081.15x = 181,917,121.73 × 48,458,854.35
  4. Step 4: Simplify right side
    121,278,081.15x = 8,815,495,305,442,996
  5. Step 5: Solve for x
    x = 8,815,495,305,442,996/121,278,081.15
  6. Step 6: Final answer
    x = 72,688,281.53

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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.