Home / 121,278,004.20-181,917,006.30-111,924,642.60

Finding the Fourth Proportional to 121,278,004.20, 181,917,006.30 and 111,924,642.60

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Solution

The fourth proportional to 121,278,004.20, 181,917,006.30 and 111,924,642.60 is: 167,886,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278,004.20 : 181,917,006.30 = 111,924,642.60 : x
  2. Step 2: Convert to fraction form
    121,278,004.20/181,917,006.30 = 111,924,642.60/x
  3. Step 3: Cross multiply
    121,278,004.20x = 181,917,006.30 × 111,924,642.60
  4. Step 4: Simplify right side
    121,278,004.20x = 20,360,995,912,989,448
  5. Step 5: Solve for x
    x = 20,360,995,912,989,448/121,278,004.20
  6. Step 6: Final answer
    x = 167,886,963.90

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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.