Home / 90,281,467.88-135,404,568.12-28,854,149.12

Finding the Fourth Proportional to 90,281,467.88, 135,404,568.12 and 28,854,149.12

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Solution

The fourth proportional to 90,281,467.88, 135,404,568.12 and 28,854,149.12 is: 43,275,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,281,467.88 : 135,404,568.12 = 28,854,149.12 : x
  2. Step 2: Convert to fraction form
    90,281,467.88/135,404,568.12 = 28,854,149.12/x
  3. Step 3: Cross multiply
    90,281,467.88x = 135,404,568.12 × 28,854,149.12
  4. Step 4: Simplify right side
    90,281,467.88x = 3,906,983,600,063,678.50
  5. Step 5: Solve for x
    x = 3,906,983,600,063,678.50/90,281,467.88
  6. Step 6: Final answer
    x = 43,275,587.91

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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.