Home / 121,212,290,863.20-181,818,436,294.80-68,969,514,799.20

Finding the Fourth Proportional to 121,212,290,863.20, 181,818,436,294.80 and 68,969,514,799.20

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Solution

The fourth proportional to 121,212,290,863.20, 181,818,436,294.80 and 68,969,514,799.20 is: 103,454,272,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212,290,863.20 : 181,818,436,294.80 = 68,969,514,799.20 : x
  2. Step 2: Convert to fraction form
    121,212,290,863.20/181,818,436,294.80 = 68,969,514,799.20/x
  3. Step 3: Cross multiply
    121,212,290,863.20x = 181,818,436,294.80 × 68,969,514,799.20
  4. Step 4: Simplify right side
    121,212,290,863.20x = 12,539,929,332,801,609,924,608
  5. Step 5: Solve for x
    x = 12,539,929,332,801,609,924,608/121,212,290,863.20
  6. Step 6: Final answer
    x = 103,454,272,198.80

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1.5x scale

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.