Home / 19,660,780.81-27,132,796.16-10,959,016.42

Finding the Fourth Proportional to 19,660,780.81, 27,132,796.16 and 10,959,016.42

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Solution

The fourth proportional to 19,660,780.81, 27,132,796.16 and 10,959,016.42 is: 15,123,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660,780.81 : 27,132,796.16 = 10,959,016.42 : x
  2. Step 2: Convert to fraction form
    19,660,780.81/27,132,796.16 = 10,959,016.42/x
  3. Step 3: Cross multiply
    19,660,780.81x = 27,132,796.16 × 10,959,016.42
  4. Step 4: Simplify right side
    19,660,780.81x = 297,348,758,637,952.94
  5. Step 5: Solve for x
    x = 297,348,758,637,952.94/19,660,780.81
  6. Step 6: Final answer
    x = 15,123,954.72

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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.