Home / 5,178,928.59-7,147,346.85-2,856,275.46

Finding the Fourth Proportional to 5,178,928.59, 7,147,346.85 and 2,856,275.46

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Solution

The fourth proportional to 5,178,928.59, 7,147,346.85 and 2,856,275.46 is: 3,941,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,928.59 : 7,147,346.85 = 2,856,275.46 : x
  2. Step 2: Convert to fraction form
    5,178,928.59/7,147,346.85 = 2,856,275.46/x
  3. Step 3: Cross multiply
    5,178,928.59x = 7,147,346.85 × 2,856,275.46
  4. Step 4: Simplify right side
    5,178,928.59x = 20,414,791,411,763.30
  5. Step 5: Solve for x
    x = 20,414,791,411,763.30/5,178,928.59
  6. Step 6: Final answer
    x = 3,941,894.75

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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.