Home / 213,177,763.60-319,766,645.40-76,876,925.20

Finding the Fourth Proportional to 213,177,763.60, 319,766,645.40 and 76,876,925.20

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Solution

The fourth proportional to 213,177,763.60, 319,766,645.40 and 76,876,925.20 is: 115,315,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,177,763.60 : 319,766,645.40 = 76,876,925.20 : x
  2. Step 2: Convert to fraction form
    213,177,763.60/319,766,645.40 = 76,876,925.20/x
  3. Step 3: Cross multiply
    213,177,763.60x = 319,766,645.40 × 76,876,925.20
  4. Step 4: Simplify right side
    213,177,763.60x = 24,582,676,479,870,724
  5. Step 5: Solve for x
    x = 24,582,676,479,870,724/213,177,763.60
  6. Step 6: Final answer
    x = 115,315,387.80

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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.