Home / 90,565,585.32-135,593,271.72-81,382,284.84

Finding the Fourth Proportional to 90,565,585.32, 135,593,271.72 and 81,382,284.84

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Solution

The fourth proportional to 90,565,585.32, 135,593,271.72 and 81,382,284.84 is: 121,844,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,565,585.32 : 135,593,271.72 = 81,382,284.84 : x
  2. Step 2: Convert to fraction form
    90,565,585.32/135,593,271.72 = 81,382,284.84/x
  3. Step 3: Cross multiply
    90,565,585.32x = 135,593,271.72 × 81,382,284.84
  4. Step 4: Simplify right side
    90,565,585.32x = 11,034,890,261,504,558
  5. Step 5: Solve for x
    x = 11,034,890,261,504,558/90,565,585.32
  6. Step 6: Final answer
    x = 121,844,188.63

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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.