Home / 15,275,830.12-21,080,796.42-8,400,360.04

Finding the Fourth Proportional to 15,275,830.12, 21,080,796.42 and 8,400,360.04

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Solution

The fourth proportional to 15,275,830.12, 21,080,796.42 and 8,400,360.04 is: 11,592,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275,830.12 : 21,080,796.42 = 8,400,360.04 : x
  2. Step 2: Convert to fraction form
    15,275,830.12/21,080,796.42 = 8,400,360.04/x
  3. Step 3: Cross multiply
    15,275,830.12x = 21,080,796.42 × 8,400,360.04
  4. Step 4: Simplify right side
    15,275,830.12x = 177,086,279,857,943.06
  5. Step 5: Solve for x
    x = 177,086,279,857,943.06/15,275,830.12
  6. Step 6: Final answer
    x = 11,592,579.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.