Home / 5,140,145.72-7,702,107.38-1,897,219.86

Finding the Fourth Proportional to 5,140,145.72, 7,702,107.38 and 1,897,219.86

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Solution

The fourth proportional to 5,140,145.72, 7,702,107.38 and 1,897,219.86 is: 2,842,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140,145.72 : 7,702,107.38 = 1,897,219.86 : x
  2. Step 2: Convert to fraction form
    5,140,145.72/7,702,107.38 = 1,897,219.86/x
  3. Step 3: Cross multiply
    5,140,145.72x = 7,702,107.38 × 1,897,219.86
  4. Step 4: Simplify right side
    5,140,145.72x = 14,612,591,085,188.57
  5. Step 5: Solve for x
    x = 14,612,591,085,188.57/5,140,145.72
  6. Step 6: Final answer
    x = 2,842,835.96

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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.