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Finding the Fourth Proportional to 6,279,300.81, 8,662,962.17 and 3,628,396.65

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Solution

The fourth proportional to 6,279,300.81, 8,662,962.17 and 3,628,396.65 is: 5,005,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279,300.81 : 8,662,962.17 = 3,628,396.65 : x
  2. Step 2: Convert to fraction form
    6,279,300.81/8,662,962.17 = 3,628,396.65/x
  3. Step 3: Cross multiply
    6,279,300.81x = 8,662,962.17 × 3,628,396.65
  4. Step 4: Simplify right side
    6,279,300.81x = 31,432,662,898,562.74
  5. Step 5: Solve for x
    x = 31,432,662,898,562.74/6,279,300.81
  6. Step 6: Final answer
    x = 5,005,758.42

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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.