Home / 18,462,117.45-27,653,318.10-12,005,109.30

Finding the Fourth Proportional to 18,462,117.45, 27,653,318.10 and 12,005,109.30

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Solution

The fourth proportional to 18,462,117.45, 27,653,318.10 and 12,005,109.30 is: 17,981,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462,117.45 : 27,653,318.10 = 12,005,109.30 : x
  2. Step 2: Convert to fraction form
    18,462,117.45/27,653,318.10 = 12,005,109.30/x
  3. Step 3: Cross multiply
    18,462,117.45x = 27,653,318.10 × 12,005,109.30
  4. Step 4: Simplify right side
    18,462,117.45x = 331,981,106,298,168.38
  5. Step 5: Solve for x
    x = 331,981,106,298,168.38/18,462,117.45
  6. Step 6: Final answer
    x = 17,981,745.98

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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.