Home / 20,147,328.12-27,799,908.78-11,325,604.32

Finding the Fourth Proportional to 20,147,328.12, 27,799,908.78 and 11,325,604.32

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Solution

The fourth proportional to 20,147,328.12, 27,799,908.78 and 11,325,604.32 is: 15,627,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,328.12 : 27,799,908.78 = 11,325,604.32 : x
  2. Step 2: Convert to fraction form
    20,147,328.12/27,799,908.78 = 11,325,604.32/x
  3. Step 3: Cross multiply
    20,147,328.12x = 27,799,908.78 × 11,325,604.32
  4. Step 4: Simplify right side
    20,147,328.12x = 314,850,766,974,373.94
  5. Step 5: Solve for x
    x = 314,850,766,974,373.94/20,147,328.12
  6. Step 6: Final answer
    x = 15,627,420.43

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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.