Home / 5,278,855.20-7,915,075.20-2,080,294.80

Finding the Fourth Proportional to 5,278,855.20, 7,915,075.20 and 2,080,294.80

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Solution

The fourth proportional to 5,278,855.20, 7,915,075.20 and 2,080,294.80 is: 3,119,178.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,855.20 : 7,915,075.20 = 2,080,294.80 : x
  2. Step 2: Convert to fraction form
    5,278,855.20/7,915,075.20 = 2,080,294.80/x
  3. Step 3: Cross multiply
    5,278,855.20x = 7,915,075.20 × 2,080,294.80
  4. Step 4: Simplify right side
    5,278,855.20x = 16,465,689,780,168.96
  5. Step 5: Solve for x
    x = 16,465,689,780,168.96/5,278,855.20
  6. Step 6: Final answer
    x = 3,119,178.15

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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.