Home / 12,995,455.16-19,465,156.47-12,231,443.12

Finding the Fourth Proportional to 12,995,455.16, 19,465,156.47 and 12,231,443.12

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Solution

The fourth proportional to 12,995,455.16, 19,465,156.47 and 12,231,443.12 is: 18,320,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995,455.16 : 19,465,156.47 = 12,231,443.12 : x
  2. Step 2: Convert to fraction form
    12,995,455.16/19,465,156.47 = 12,231,443.12/x
  3. Step 3: Cross multiply
    12,995,455.16x = 19,465,156.47 × 12,231,443.12
  4. Step 4: Simplify right side
    12,995,455.16x = 238,086,954,133,247.09
  5. Step 5: Solve for x
    x = 238,086,954,133,247.09/12,995,455.16
  6. Step 6: Final answer
    x = 18,320,786.09

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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.