Home / 260,723,742.60-391,138,101.90-76,490,862.60

Finding the Fourth Proportional to 260,723,742.60, 391,138,101.90 and 76,490,862.60

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Solution

The fourth proportional to 260,723,742.60, 391,138,101.90 and 76,490,862.60 is: 114,751,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,723,742.60 : 391,138,101.90 = 76,490,862.60 : x
  2. Step 2: Convert to fraction form
    260,723,742.60/391,138,101.90 = 76,490,862.60/x
  3. Step 3: Cross multiply
    260,723,742.60x = 391,138,101.90 × 76,490,862.60
  4. Step 4: Simplify right side
    260,723,742.60x = 29,918,490,810,057,696
  5. Step 5: Solve for x
    x = 29,918,490,810,057,696/260,723,742.60
  6. Step 6: Final answer
    x = 114,751,692.78

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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.