Home / 99,387,008.20-149,080,512.30-84,270,464.20

Finding the Fourth Proportional to 99,387,008.20, 149,080,512.30 and 84,270,464.20

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Solution

The fourth proportional to 99,387,008.20, 149,080,512.30 and 84,270,464.20 is: 126,405,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387,008.20 : 149,080,512.30 = 84,270,464.20 : x
  2. Step 2: Convert to fraction form
    99,387,008.20/149,080,512.30 = 84,270,464.20/x
  3. Step 3: Cross multiply
    99,387,008.20x = 149,080,512.30 × 84,270,464.20
  4. Step 4: Simplify right side
    99,387,008.20x = 12,563,083,974,694,812
  5. Step 5: Solve for x
    x = 12,563,083,974,694,812/99,387,008.20
  6. Step 6: Final answer
    x = 126,405,696.30

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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.