Home / 90,987,481.20-136,481,221.80-60,376,479.60

Finding the Fourth Proportional to 90,987,481.20, 136,481,221.80 and 60,376,479.60

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Solution

The fourth proportional to 90,987,481.20, 136,481,221.80 and 60,376,479.60 is: 90,564,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,987,481.20 : 136,481,221.80 = 60,376,479.60 : x
  2. Step 2: Convert to fraction form
    90,987,481.20/136,481,221.80 = 60,376,479.60/x
  3. Step 3: Cross multiply
    90,987,481.20x = 136,481,221.80 × 60,376,479.60
  4. Step 4: Simplify right side
    90,987,481.20x = 8,240,255,703,790,776
  5. Step 5: Solve for x
    x = 8,240,255,703,790,776/90,987,481.20
  6. Step 6: Final answer
    x = 90,564,719.40

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1.5x scale

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.