Home / 129,343,623.80-194,157,153.30-80,876,204.60

Finding the Fourth Proportional to 129,343,623.80, 194,157,153.30 and 80,876,204.60

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Solution

The fourth proportional to 129,343,623.80, 194,157,153.30 and 80,876,204.60 is: 121,402,920.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,343,623.80 : 194,157,153.30 = 80,876,204.60 : x
  2. Step 2: Convert to fraction form
    129,343,623.80/194,157,153.30 = 80,876,204.60/x
  3. Step 3: Cross multiply
    129,343,623.80x = 194,157,153.30 × 80,876,204.60
  4. Step 4: Simplify right side
    129,343,623.80x = 15,702,693,654,844,364
  5. Step 5: Solve for x
    x = 15,702,693,654,844,364/129,343,623.80
  6. Step 6: Final answer
    x = 121,402,920.33

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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.