Home / 3,543,120-4,889,768.40-2,015,719.20

Finding the Fourth Proportional to 3,543,120, 4,889,768.40 and 2,015,719.20

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Solution

The fourth proportional to 3,543,120, 4,889,768.40 and 2,015,719.20 is: 2,781,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543,120 : 4,889,768.40 = 2,015,719.20 : x
  2. Step 2: Convert to fraction form
    3,543,120/4,889,768.40 = 2,015,719.20/x
  3. Step 3: Cross multiply
    3,543,120x = 4,889,768.40 × 2,015,719.20
  4. Step 4: Simplify right side
    3,543,120x = 9,856,400,047,433.28
  5. Step 5: Solve for x
    x = 9,856,400,047,433.28/3,543,120
  6. Step 6: Final answer
    x = 2,781,842.01

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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.