Home / 21,179,016.42-29,217,335.49-12,473,021.40

Finding the Fourth Proportional to 21,179,016.42, 29,217,335.49 and 12,473,021.40

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Solution

The fourth proportional to 21,179,016.42, 29,217,335.49 and 12,473,021.40 is: 17,207,052.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179,016.42 : 29,217,335.49 = 12,473,021.40 : x
  2. Step 2: Convert to fraction form
    21,179,016.42/29,217,335.49 = 12,473,021.40/x
  3. Step 3: Cross multiply
    21,179,016.42x = 29,217,335.49 × 12,473,021.40
  4. Step 4: Simplify right side
    21,179,016.42x = 364,428,450,817,749.50
  5. Step 5: Solve for x
    x = 364,428,450,817,749.50/21,179,016.42
  6. Step 6: Final answer
    x = 17,207,052.66

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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.