Home / 6,128,125.20-9,192,187.80-5,456,278.80

Finding the Fourth Proportional to 6,128,125.20, 9,192,187.80 and 5,456,278.80

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Solution

The fourth proportional to 6,128,125.20, 9,192,187.80 and 5,456,278.80 is: 8,184,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128,125.20 : 9,192,187.80 = 5,456,278.80 : x
  2. Step 2: Convert to fraction form
    6,128,125.20/9,192,187.80 = 5,456,278.80/x
  3. Step 3: Cross multiply
    6,128,125.20x = 9,192,187.80 × 5,456,278.80
  4. Step 4: Simplify right side
    6,128,125.20x = 50,155,139,418,758.64
  5. Step 5: Solve for x
    x = 50,155,139,418,758.64/6,128,125.20
  6. Step 6: Final answer
    x = 8,184,418.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.