Home / 8,378,108.88-11,561,943.12-4,657,289.28

Finding the Fourth Proportional to 8,378,108.88, 11,561,943.12 and 4,657,289.28

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Solution

The fourth proportional to 8,378,108.88, 11,561,943.12 and 4,657,289.28 is: 6,427,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,108.88 : 11,561,943.12 = 4,657,289.28 : x
  2. Step 2: Convert to fraction form
    8,378,108.88/11,561,943.12 = 4,657,289.28/x
  3. Step 3: Cross multiply
    8,378,108.88x = 11,561,943.12 × 4,657,289.28
  4. Step 4: Simplify right side
    8,378,108.88x = 53,847,313,748,745.75
  5. Step 5: Solve for x
    x = 53,847,313,748,745.75/8,378,108.88
  6. Step 6: Final answer
    x = 6,427,144.18

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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.