Home / 5,320,438.10-7,980,657.15-3,189,425.30

Finding the Fourth Proportional to 5,320,438.10, 7,980,657.15 and 3,189,425.30

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Solution

The fourth proportional to 5,320,438.10, 7,980,657.15 and 3,189,425.30 is: 4,784,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320,438.10 : 7,980,657.15 = 3,189,425.30 : x
  2. Step 2: Convert to fraction form
    5,320,438.10/7,980,657.15 = 3,189,425.30/x
  3. Step 3: Cross multiply
    5,320,438.10x = 7,980,657.15 × 3,189,425.30
  4. Step 4: Simplify right side
    5,320,438.10x = 25,453,709,824,835.89
  5. Step 5: Solve for x
    x = 25,453,709,824,835.89/5,320,438.10
  6. Step 6: Final answer
    x = 4,784,137.95

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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.