Home / 260,814,942.80-391,222,414.20-139,882,590.80

Finding the Fourth Proportional to 260,814,942.80, 391,222,414.20 and 139,882,590.80

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Solution

The fourth proportional to 260,814,942.80, 391,222,414.20 and 139,882,590.80 is: 209,823,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,814,942.80 : 391,222,414.20 = 139,882,590.80 : x
  2. Step 2: Convert to fraction form
    260,814,942.80/391,222,414.20 = 139,882,590.80/x
  3. Step 3: Cross multiply
    260,814,942.80x = 391,222,414.20 × 139,882,590.80
  4. Step 4: Simplify right side
    260,814,942.80x = 54,725,204,877,326,712
  5. Step 5: Solve for x
    x = 54,725,204,877,326,712/260,814,942.80
  6. Step 6: Final answer
    x = 209,823,886.20

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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.