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Finding the Fourth Proportional to 260,760,386,752.80, 391,140,580,129.20 and 260,760,386,752.80

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Solution

The fourth proportional to 260,760,386,752.80, 391,140,580,129.20 and 260,760,386,752.80 is: 391,140,580,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760,386,752.80 : 391,140,580,129.20 = 260,760,386,752.80 : x
  2. Step 2: Convert to fraction form
    260,760,386,752.80/391,140,580,129.20 = 260,760,386,752.80/x
  3. Step 3: Cross multiply
    260,760,386,752.80x = 391,140,580,129.20 × 260,760,386,752.80
  4. Step 4: Simplify right side
    260,760,386,752.80x = 101,993,968,949,204,740,997,120
  5. Step 5: Solve for x
    x = 101,993,968,949,204,740,997,120/260,760,386,752.80
  6. Step 6: Final answer
    x = 391,140,580,129.20

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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.