Home / 260,815,857.60-391,223,786.40-195,767,479.20

Finding the Fourth Proportional to 260,815,857.60, 391,223,786.40 and 195,767,479.20

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Solution

The fourth proportional to 260,815,857.60, 391,223,786.40 and 195,767,479.20 is: 293,651,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,815,857.60 : 391,223,786.40 = 195,767,479.20 : x
  2. Step 2: Convert to fraction form
    260,815,857.60/391,223,786.40 = 195,767,479.20/x
  3. Step 3: Cross multiply
    260,815,857.60x = 391,223,786.40 × 195,767,479.20
  4. Step 4: Simplify right side
    260,815,857.60x = 76,588,894,466,607,232
  5. Step 5: Solve for x
    x = 76,588,894,466,607,232/260,815,857.60
  6. Step 6: Final answer
    x = 293,651,218.80

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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.