Home / 260,996,976.09-391,411,727.82-86,080,683.15

Finding the Fourth Proportional to 260,996,976.09, 391,411,727.82 and 86,080,683.15

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Solution

The fourth proportional to 260,996,976.09, 391,411,727.82 and 86,080,683.15 is: 129,093,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,996,976.09 : 391,411,727.82 = 86,080,683.15 : x
  2. Step 2: Convert to fraction form
    260,996,976.09/391,411,727.82 = 86,080,683.15/x
  3. Step 3: Cross multiply
    260,996,976.09x = 391,411,727.82 × 86,080,683.15
  4. Step 4: Simplify right side
    260,996,976.09x = 33,692,988,923,667,460
  5. Step 5: Solve for x
    x = 33,692,988,923,667,460/260,996,976.09
  6. Step 6: Final answer
    x = 129,093,407.24

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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.