Home / 21,305,717.80-31,958,576.70-9,361,781.80

Finding the Fourth Proportional to 21,305,717.80, 31,958,576.70 and 9,361,781.80

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Solution

The fourth proportional to 21,305,717.80, 31,958,576.70 and 9,361,781.80 is: 14,042,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305,717.80 : 31,958,576.70 = 9,361,781.80 : x
  2. Step 2: Convert to fraction form
    21,305,717.80/31,958,576.70 = 9,361,781.80/x
  3. Step 3: Cross multiply
    21,305,717.80x = 31,958,576.70 × 9,361,781.80
  4. Step 4: Simplify right side
    21,305,717.80x = 299,189,221,703,964.06
  5. Step 5: Solve for x
    x = 299,189,221,703,964.06/21,305,717.80
  6. Step 6: Final answer
    x = 14,042,672.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.