Home / 12,259,138.28-16,917,610.73-7,105,489.16

Finding the Fourth Proportional to 12,259,138.28, 16,917,610.73 and 7,105,489.16

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Solution

The fourth proportional to 12,259,138.28, 16,917,610.73 and 7,105,489.16 is: 9,805,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259,138.28 : 16,917,610.73 = 7,105,489.16 : x
  2. Step 2: Convert to fraction form
    12,259,138.28/16,917,610.73 = 7,105,489.16/x
  3. Step 3: Cross multiply
    12,259,138.28x = 16,917,610.73 × 7,105,489.16
  4. Step 4: Simplify right side
    12,259,138.28x = 120,207,899,534,999.20
  5. Step 5: Solve for x
    x = 120,207,899,534,999.20/12,259,138.28
  6. Step 6: Final answer
    x = 9,805,574.98

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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.