Home / 260,744,725.20-391,117,087.80-78,991,903.20

Finding the Fourth Proportional to 260,744,725.20, 391,117,087.80 and 78,991,903.20

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Solution

The fourth proportional to 260,744,725.20, 391,117,087.80 and 78,991,903.20 is: 118,487,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,744,725.20 : 391,117,087.80 = 78,991,903.20 : x
  2. Step 2: Convert to fraction form
    260,744,725.20/391,117,087.80 = 78,991,903.20/x
  3. Step 3: Cross multiply
    260,744,725.20x = 391,117,087.80 × 78,991,903.20
  4. Step 4: Simplify right side
    260,744,725.20x = 30,895,083,139,363,504
  5. Step 5: Solve for x
    x = 30,895,083,139,363,504/260,744,725.20
  6. Step 6: Final answer
    x = 118,487,854.80

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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.