Home / 260,691,449.60-391,289,116.80-131,444,998.40

Finding the Fourth Proportional to 260,691,449.60, 391,289,116.80 and 131,444,998.40

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Solution

The fourth proportional to 260,691,449.60, 391,289,116.80 and 131,444,998.40 is: 197,294,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,691,449.60 : 391,289,116.80 = 131,444,998.40 : x
  2. Step 2: Convert to fraction form
    260,691,449.60/391,289,116.80 = 131,444,998.40/x
  3. Step 3: Cross multiply
    260,691,449.60x = 391,289,116.80 × 131,444,998.40
  4. Step 4: Simplify right side
    260,691,449.60x = 51,432,997,331,713,416
  5. Step 5: Solve for x
    x = 51,432,997,331,713,416/260,691,449.60
  6. Step 6: Final answer
    x = 197,294,531.18

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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.