Home / 21,752,015.45-30,017,181.89-11,962,459.43

Finding the Fourth Proportional to 21,752,015.45, 30,017,181.89 and 11,962,459.43

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Solution

The fourth proportional to 21,752,015.45, 30,017,181.89 and 11,962,459.43 is: 16,507,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,752,015.45 : 30,017,181.89 = 11,962,459.43 : x
  2. Step 2: Convert to fraction form
    21,752,015.45/30,017,181.89 = 11,962,459.43/x
  3. Step 3: Cross multiply
    21,752,015.45x = 30,017,181.89 × 11,962,459.43
  4. Step 4: Simplify right side
    21,752,015.45x = 359,079,320,723,287
  5. Step 5: Solve for x
    x = 359,079,320,723,287/21,752,015.45
  6. Step 6: Final answer
    x = 16,507,864.36

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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.