Home / 18,521,900.12-27,650,712.82-17,291,029.87

Finding the Fourth Proportional to 18,521,900.12, 27,650,712.82 and 17,291,029.87

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Solution

The fourth proportional to 18,521,900.12, 27,650,712.82 and 17,291,029.87 is: 25,813,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521,900.12 : 27,650,712.82 = 17,291,029.87 : x
  2. Step 2: Convert to fraction form
    18,521,900.12/27,650,712.82 = 17,291,029.87/x
  3. Step 3: Cross multiply
    18,521,900.12x = 27,650,712.82 × 17,291,029.87
  4. Step 4: Simplify right side
    18,521,900.12x = 478,109,301,297,411.94
  5. Step 5: Solve for x
    x = 478,109,301,297,411.94/18,521,900.12
  6. Step 6: Final answer
    x = 25,813,188.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.