Home / 121,278,047.40-181,917,071.10-48,458,820.60

Finding the Fourth Proportional to 121,278,047.40, 181,917,071.10 and 48,458,820.60

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Solution

The fourth proportional to 121,278,047.40, 181,917,071.10 and 48,458,820.60 is: 72,688,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278,047.40 : 181,917,071.10 = 48,458,820.60 : x
  2. Step 2: Convert to fraction form
    121,278,047.40/181,917,071.10 = 48,458,820.60/x
  3. Step 3: Cross multiply
    121,278,047.40x = 181,917,071.10 × 48,458,820.60
  4. Step 4: Simplify right side
    121,278,047.40x = 8,815,486,712,512,345
  5. Step 5: Solve for x
    x = 8,815,486,712,512,345/121,278,047.40
  6. Step 6: Final answer
    x = 72,688,230.90

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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.