Home / 12,463,642.80-18,695,464.20-11,875,777.20

Finding the Fourth Proportional to 12,463,642.80, 18,695,464.20 and 11,875,777.20

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Solution

The fourth proportional to 12,463,642.80, 18,695,464.20 and 11,875,777.20 is: 17,813,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463,642.80 : 18,695,464.20 = 11,875,777.20 : x
  2. Step 2: Convert to fraction form
    12,463,642.80/18,695,464.20 = 11,875,777.20/x
  3. Step 3: Cross multiply
    12,463,642.80x = 18,695,464.20 × 11,875,777.20
  4. Step 4: Simplify right side
    12,463,642.80x = 222,023,167,489,776.22
  5. Step 5: Solve for x
    x = 222,023,167,489,776.22/12,463,642.80
  6. Step 6: Final answer
    x = 17,813,665.80

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1.5x scale

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.