Home / 4,920,206.20-7,381,346.10-2,078,855.80

Finding the Fourth Proportional to 4,920,206.20, 7,381,346.10 and 2,078,855.80

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Solution

The fourth proportional to 4,920,206.20, 7,381,346.10 and 2,078,855.80 is: 3,118,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,206.20 : 7,381,346.10 = 2,078,855.80 : x
  2. Step 2: Convert to fraction form
    4,920,206.20/7,381,346.10 = 2,078,855.80/x
  3. Step 3: Cross multiply
    4,920,206.20x = 7,381,346.10 × 2,078,855.80
  4. Step 4: Simplify right side
    4,920,206.20x = 15,344,754,151,792.38
  5. Step 5: Solve for x
    x = 15,344,754,151,792.38/4,920,206.20
  6. Step 6: Final answer
    x = 3,118,721.76

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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.