Home / 28,304,846.96-38,964,295.69-20,948,817.78

Finding the Fourth Proportional to 28,304,846.96, 38,964,295.69 and 20,948,817.78

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Solution

The fourth proportional to 28,304,846.96, 38,964,295.69 and 20,948,817.78 is: 28,838,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304,846.96 : 38,964,295.69 = 20,948,817.78 : x
  2. Step 2: Convert to fraction form
    28,304,846.96/38,964,295.69 = 20,948,817.78/x
  3. Step 3: Cross multiply
    28,304,846.96x = 38,964,295.69 × 20,948,817.78
  4. Step 4: Simplify right side
    28,304,846.96x = 816,255,930,283,477.38
  5. Step 5: Solve for x
    x = 816,255,930,283,477.38/28,304,846.96
  6. Step 6: Final answer
    x = 28,838,026.63

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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.