Home / 80,960,785.07-121,314,074.63-55,065,436.61

Finding the Fourth Proportional to 80,960,785.07, 121,314,074.63 and 55,065,436.61

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Solution

The fourth proportional to 80,960,785.07, 121,314,074.63 and 55,065,436.61 is: 82,511,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,960,785.07 : 121,314,074.63 = 55,065,436.61 : x
  2. Step 2: Convert to fraction form
    80,960,785.07/121,314,074.63 = 55,065,436.61/x
  3. Step 3: Cross multiply
    80,960,785.07x = 121,314,074.63 × 55,065,436.61
  4. Step 4: Simplify right side
    80,960,785.07x = 6,680,212,485,557,176
  5. Step 5: Solve for x
    x = 6,680,212,485,557,176/80,960,785.07
  6. Step 6: Final answer
    x = 82,511,705.89

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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.