Home / 100,080,718.48-138,040,178.34-91,847,374.24

Finding the Fourth Proportional to 100,080,718.48, 138,040,178.34 and 91,847,374.24

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Solution

The fourth proportional to 100,080,718.48, 138,040,178.34 and 91,847,374.24 is: 126,684,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,080,718.48 : 138,040,178.34 = 91,847,374.24 : x
  2. Step 2: Convert to fraction form
    100,080,718.48/138,040,178.34 = 91,847,374.24/x
  3. Step 3: Cross multiply
    100,080,718.48x = 138,040,178.34 × 91,847,374.24
  4. Step 4: Simplify right side
    100,080,718.48x = 12,678,627,920,150,322
  5. Step 5: Solve for x
    x = 12,678,627,920,150,322/100,080,718.48
  6. Step 6: Final answer
    x = 126,684,021.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.