Home / 20,351,423.78-28,084,943.39-11,058,971.60

Finding the Fourth Proportional to 20,351,423.78, 28,084,943.39 and 11,058,971.60

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Solution

The fourth proportional to 20,351,423.78, 28,084,943.39 and 11,058,971.60 is: 15,261,369.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351,423.78 : 28,084,943.39 = 11,058,971.60 : x
  2. Step 2: Convert to fraction form
    20,351,423.78/28,084,943.39 = 11,058,971.60/x
  3. Step 3: Cross multiply
    20,351,423.78x = 28,084,943.39 × 11,058,971.60
  4. Step 4: Simplify right side
    20,351,423.78x = 310,590,591,366,242.69
  5. Step 5: Solve for x
    x = 310,590,591,366,242.69/20,351,423.78
  6. Step 6: Final answer
    x = 15,261,369.16

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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.