Home / 4,920,997.80-7,381,496.70-4,247,839.20

Finding the Fourth Proportional to 4,920,997.80, 7,381,496.70 and 4,247,839.20

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Solution

The fourth proportional to 4,920,997.80, 7,381,496.70 and 4,247,839.20 is: 6,371,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,997.80 : 7,381,496.70 = 4,247,839.20 : x
  2. Step 2: Convert to fraction form
    4,920,997.80/7,381,496.70 = 4,247,839.20/x
  3. Step 3: Cross multiply
    4,920,997.80x = 7,381,496.70 × 4,247,839.20
  4. Step 4: Simplify right side
    4,920,997.80x = 31,355,411,036,930.64
  5. Step 5: Solve for x
    x = 31,355,411,036,930.64/4,920,997.80
  6. Step 6: Final answer
    x = 6,371,758.80

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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.