Home / 12,481,967.16-17,218,659.24-7,900,945.74

Finding the Fourth Proportional to 12,481,967.16, 17,218,659.24 and 7,900,945.74

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Solution

The fourth proportional to 12,481,967.16, 17,218,659.24 and 7,900,945.74 is: 10,899,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,967.16 : 17,218,659.24 = 7,900,945.74 : x
  2. Step 2: Convert to fraction form
    12,481,967.16/17,218,659.24 = 7,900,945.74/x
  3. Step 3: Cross multiply
    12,481,967.16x = 17,218,659.24 × 7,900,945.74
  4. Step 4: Simplify right side
    12,481,967.16x = 136,043,692,370,789.62
  5. Step 5: Solve for x
    x = 136,043,692,370,789.62/12,481,967.16
  6. Step 6: Final answer
    x = 10,899,218.90

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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.