Home / 9,720,989.28-13,415,372.79-5,591,021.57

Finding the Fourth Proportional to 9,720,989.28, 13,415,372.79 and 5,591,021.57

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Solution

The fourth proportional to 9,720,989.28, 13,415,372.79 and 5,591,021.57 is: 7,715,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720,989.28 : 13,415,372.79 = 5,591,021.57 : x
  2. Step 2: Convert to fraction form
    9,720,989.28/13,415,372.79 = 5,591,021.57/x
  3. Step 3: Cross multiply
    9,720,989.28x = 13,415,372.79 × 5,591,021.57
  4. Step 4: Simplify right side
    9,720,989.28x = 75,005,638,638,481.08
  5. Step 5: Solve for x
    x = 75,005,638,638,481.08/9,720,989.28
  6. Step 6: Final answer
    x = 7,715,844.19

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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.