Home / 3,855,178.32-5,320,177.77-2,136,327.54

Finding the Fourth Proportional to 3,855,178.32, 5,320,177.77 and 2,136,327.54

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Solution

The fourth proportional to 3,855,178.32, 5,320,177.77 and 2,136,327.54 is: 2,948,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,178.32 : 5,320,177.77 = 2,136,327.54 : x
  2. Step 2: Convert to fraction form
    3,855,178.32/5,320,177.77 = 2,136,327.54/x
  3. Step 3: Cross multiply
    3,855,178.32x = 5,320,177.77 × 2,136,327.54
  4. Step 4: Simplify right side
    3,855,178.32x = 11,365,642,287,746.79
  5. Step 5: Solve for x
    x = 11,365,642,287,746.79/3,855,178.32
  6. Step 6: Final answer
    x = 2,948,149.57

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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.