Home / 12,723,243.20-19,078,327.20-3,746,628.80

Finding the Fourth Proportional to 12,723,243.20, 19,078,327.20 and 3,746,628.80

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Solution

The fourth proportional to 12,723,243.20, 19,078,327.20 and 3,746,628.80 is: 5,618,018.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723,243.20 : 19,078,327.20 = 3,746,628.80 : x
  2. Step 2: Convert to fraction form
    12,723,243.20/19,078,327.20 = 3,746,628.80/x
  3. Step 3: Cross multiply
    12,723,243.20x = 19,078,327.20 × 3,746,628.80
  4. Step 4: Simplify right side
    12,723,243.20x = 71,479,410,143,343.36
  5. Step 5: Solve for x
    x = 71,479,410,143,343.36/12,723,243.20
  6. Step 6: Final answer
    x = 5,618,018.07

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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.