Home / 5,107,137.90-7,047,898.20-2,815,380.60

Finding the Fourth Proportional to 5,107,137.90, 7,047,898.20 and 2,815,380.60

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Solution

The fourth proportional to 5,107,137.90, 7,047,898.20 and 2,815,380.60 is: 3,885,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107,137.90 : 7,047,898.20 = 2,815,380.60 : x
  2. Step 2: Convert to fraction form
    5,107,137.90/7,047,898.20 = 2,815,380.60/x
  3. Step 3: Cross multiply
    5,107,137.90x = 7,047,898.20 × 2,815,380.60
  4. Step 4: Simplify right side
    5,107,137.90x = 19,842,515,863,054.92
  5. Step 5: Solve for x
    x = 19,842,515,863,054.92/5,107,137.90
  6. Step 6: Final answer
    x = 3,885,251.63

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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.