Home / 5,178,877.30-7,147,276.18-2,856,224.12

Finding the Fourth Proportional to 5,178,877.30, 7,147,276.18 and 2,856,224.12

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Solution

The fourth proportional to 5,178,877.30, 7,147,276.18 and 2,856,224.12 is: 3,941,823.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,877.30 : 7,147,276.18 = 2,856,224.12 : x
  2. Step 2: Convert to fraction form
    5,178,877.30/7,147,276.18 = 2,856,224.12/x
  3. Step 3: Cross multiply
    5,178,877.30x = 7,147,276.18 × 2,856,224.12
  4. Step 4: Simplify right side
    5,178,877.30x = 20,414,222,617,617.46
  5. Step 5: Solve for x
    x = 20,414,222,617,617.46/5,178,877.30
  6. Step 6: Final answer
    x = 3,941,823.96

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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.