Home / 121,264,243.80-181,897,920.90-40,485,211.80

Finding the Fourth Proportional to 121,264,243.80, 181,897,920.90 and 40,485,211.80

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Solution

The fourth proportional to 121,264,243.80, 181,897,920.90 and 40,485,211.80 is: 60,728,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,264,243.80 : 181,897,920.90 = 40,485,211.80 : x
  2. Step 2: Convert to fraction form
    121,264,243.80/181,897,920.90 = 40,485,211.80/x
  3. Step 3: Cross multiply
    121,264,243.80x = 181,897,920.90 × 40,485,211.80
  4. Step 4: Simplify right side
    121,264,243.80x = 7,364,175,853,616,146
  5. Step 5: Solve for x
    x = 7,364,175,853,616,146/121,264,243.80
  6. Step 6: Final answer
    x = 60,728,336.92

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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.