Home / 90,750,643.56-135,547,310.03-82,101,408.48

Finding the Fourth Proportional to 90,750,643.56, 135,547,310.03 and 82,101,408.48

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Solution

The fourth proportional to 90,750,643.56, 135,547,310.03 and 82,101,408.48 is: 122,628,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,750,643.56 : 135,547,310.03 = 82,101,408.48 : x
  2. Step 2: Convert to fraction form
    90,750,643.56/135,547,310.03 = 82,101,408.48/x
  3. Step 3: Cross multiply
    90,750,643.56x = 135,547,310.03 × 82,101,408.48
  4. Step 4: Simplify right side
    90,750,643.56x = 11,128,625,068,727,726
  5. Step 5: Solve for x
    x = 11,128,625,068,727,726/90,750,643.56
  6. Step 6: Final answer
    x = 122,628,607.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.