Home / 9,989,391.36-13,780,963.28-5,857,324.32

Finding the Fourth Proportional to 9,989,391.36, 13,780,963.28 and 5,857,324.32

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Solution

The fourth proportional to 9,989,391.36, 13,780,963.28 and 5,857,324.32 is: 8,080,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,391.36 : 13,780,963.28 = 5,857,324.32 : x
  2. Step 2: Convert to fraction form
    9,989,391.36/13,780,963.28 = 5,857,324.32/x
  3. Step 3: Cross multiply
    9,989,391.36x = 13,780,963.28 × 5,857,324.32
  4. Step 4: Simplify right side
    9,989,391.36x = 80,719,571,372,970.97
  5. Step 5: Solve for x
    x = 80,719,571,372,970.97/9,989,391.36
  6. Step 6: Final answer
    x = 8,080,529.48

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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.