Home / 121,279,233.80-181,918,850.70-66,670,718.60

Finding the Fourth Proportional to 121,279,233.80, 181,918,850.70 and 66,670,718.60

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Solution

The fourth proportional to 121,279,233.80, 181,918,850.70 and 66,670,718.60 is: 100,006,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279,233.80 : 181,918,850.70 = 66,670,718.60 : x
  2. Step 2: Convert to fraction form
    121,279,233.80/181,918,850.70 = 66,670,718.60/x
  3. Step 3: Cross multiply
    121,279,233.80x = 181,918,850.70 × 66,670,718.60
  4. Step 4: Simplify right side
    121,279,233.80x = 12,128,660,503,055,112
  5. Step 5: Solve for x
    x = 12,128,660,503,055,112/121,279,233.80
  6. Step 6: Final answer
    x = 100,006,077.90

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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.