Home / 3,855,356.80-5,320,423.20-2,136,505.84

Finding the Fourth Proportional to 3,855,356.80, 5,320,423.20 and 2,136,505.84

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Solution

The fourth proportional to 3,855,356.80, 5,320,423.20 and 2,136,505.84 is: 2,948,395.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,356.80 : 5,320,423.20 = 2,136,505.84 : x
  2. Step 2: Convert to fraction form
    3,855,356.80/5,320,423.20 = 2,136,505.84/x
  3. Step 3: Cross multiply
    3,855,356.80x = 5,320,423.20 × 2,136,505.84
  4. Step 4: Simplify right side
    3,855,356.80x = 11,367,115,238,071.49
  5. Step 5: Solve for x
    x = 11,367,115,238,071.49/3,855,356.80
  6. Step 6: Final answer
    x = 2,948,395.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.