Home / 260,760,384,051.60-391,140,576,077.40-218,918,971,239.60

Finding the Fourth Proportional to 260,760,384,051.60, 391,140,576,077.40 and 218,918,971,239.60

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Solution

The fourth proportional to 260,760,384,051.60, 391,140,576,077.40 and 218,918,971,239.60 is: 328,378,456,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760,384,051.60 : 391,140,576,077.40 = 218,918,971,239.60 : x
  2. Step 2: Convert to fraction form
    260,760,384,051.60/391,140,576,077.40 = 218,918,971,239.60/x
  3. Step 3: Cross multiply
    260,760,384,051.60x = 391,140,576,077.40 × 218,918,971,239.60
  4. Step 4: Simplify right side
    260,760,384,051.60x = 85,628,092,524,928,910,229,504
  5. Step 5: Solve for x
    x = 85,628,092,524,928,910,229,504/260,760,384,051.60
  6. Step 6: Final answer
    x = 328,378,456,859.40

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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.