Home / 5,429,815.20-8,145,816.30-1,591,630.20

Finding the Fourth Proportional to 5,429,815.20, 8,145,816.30 and 1,591,630.20

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Solution

The fourth proportional to 5,429,815.20, 8,145,816.30 and 1,591,630.20 is: 2,387,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,815.20 : 8,145,816.30 = 1,591,630.20 : x
  2. Step 2: Convert to fraction form
    5,429,815.20/8,145,816.30 = 1,591,630.20/x
  3. Step 3: Cross multiply
    5,429,815.20x = 8,145,816.30 × 1,591,630.20
  4. Step 4: Simplify right side
    5,429,815.20x = 12,965,127,226,732.26
  5. Step 5: Solve for x
    x = 12,965,127,226,732.26/5,429,815.20
  6. Step 6: Final answer
    x = 2,387,765.84

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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.