Home / 27,129,712.40-40,694,568.60-19,902,114.80

Finding the Fourth Proportional to 27,129,712.40, 40,694,568.60 and 19,902,114.80

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Solution

The fourth proportional to 27,129,712.40, 40,694,568.60 and 19,902,114.80 is: 29,853,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129,712.40 : 40,694,568.60 = 19,902,114.80 : x
  2. Step 2: Convert to fraction form
    27,129,712.40/40,694,568.60 = 19,902,114.80/x
  3. Step 3: Cross multiply
    27,129,712.40x = 40,694,568.60 × 19,902,114.80
  4. Step 4: Simplify right side
    27,129,712.40x = 809,907,976,013,675.38
  5. Step 5: Solve for x
    x = 809,907,976,013,675.38/27,129,712.40
  6. Step 6: Final answer
    x = 29,853,172.20

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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.