Home / 260,741,311.20-391,111,966.80-170,042,047.20

Finding the Fourth Proportional to 260,741,311.20, 391,111,966.80 and 170,042,047.20

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Solution

The fourth proportional to 260,741,311.20, 391,111,966.80 and 170,042,047.20 is: 255,063,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,741,311.20 : 391,111,966.80 = 170,042,047.20 : x
  2. Step 2: Convert to fraction form
    260,741,311.20/391,111,966.80 = 170,042,047.20/x
  3. Step 3: Cross multiply
    260,741,311.20x = 391,111,966.80 × 170,042,047.20
  4. Step 4: Simplify right side
    260,741,311.20x = 66,505,479,519,090,432
  5. Step 5: Solve for x
    x = 66,505,479,519,090,432/260,741,311.20
  6. Step 6: Final answer
    x = 255,063,070.80

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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.