Home / 260,760,386,979.60-391,140,580,469.40-259,107,392,893.20

Finding the Fourth Proportional to 260,760,386,979.60, 391,140,580,469.40 and 259,107,392,893.20

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Solution

The fourth proportional to 260,760,386,979.60, 391,140,580,469.40 and 259,107,392,893.20 is: 388,661,089,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760,386,979.60 : 391,140,580,469.40 = 259,107,392,893.20 : x
  2. Step 2: Convert to fraction form
    260,760,386,979.60/391,140,580,469.40 = 259,107,392,893.20/x
  3. Step 3: Cross multiply
    260,760,386,979.60x = 391,140,580,469.40 × 259,107,392,893.20
  4. Step 4: Simplify right side
    260,760,386,979.60x = 101,347,416,060,159,149,998,080
  5. Step 5: Solve for x
    x = 101,347,416,060,159,149,998,080/260,760,386,979.60
  6. Step 6: Final answer
    x = 388,661,089,339.80

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1.5x scale

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.