Home / 100,080,718.98-138,040,179.03-91,847,374.74

Finding the Fourth Proportional to 100,080,718.98, 138,040,179.03 and 91,847,374.74

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Solution

The fourth proportional to 100,080,718.98, 138,040,179.03 and 91,847,374.74 is: 126,684,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,080,718.98 : 138,040,179.03 = 91,847,374.74 : x
  2. Step 2: Convert to fraction form
    100,080,718.98/138,040,179.03 = 91,847,374.74/x
  3. Step 3: Cross multiply
    100,080,718.98x = 138,040,179.03 × 91,847,374.74
  4. Step 4: Simplify right side
    100,080,718.98x = 12,678,628,052,545,100
  5. Step 5: Solve for x
    x = 12,678,628,052,545,100/100,080,718.98
  6. Step 6: Final answer
    x = 126,684,022.47

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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.