Home / 260,724,069.60-391,086,104.40-131,281,663.20

Finding the Fourth Proportional to 260,724,069.60, 391,086,104.40 and 131,281,663.20

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Solution

The fourth proportional to 260,724,069.60, 391,086,104.40 and 131,281,663.20 is: 196,922,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,724,069.60 : 391,086,104.40 = 131,281,663.20 : x
  2. Step 2: Convert to fraction form
    260,724,069.60/391,086,104.40 = 131,281,663.20/x
  3. Step 3: Cross multiply
    260,724,069.60x = 391,086,104.40 × 131,281,663.20
  4. Step 4: Simplify right side
    260,724,069.60x = 51,342,434,240,040,840
  5. Step 5: Solve for x
    x = 51,342,434,240,040,840/260,724,069.60
  6. Step 6: Final answer
    x = 196,922,494.80

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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.