Home / 22,107,863.68-30,508,972.89-12,820,939.97

Finding the Fourth Proportional to 22,107,863.68, 30,508,972.89 and 12,820,939.97

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Solution

The fourth proportional to 22,107,863.68, 30,508,972.89 and 12,820,939.97 is: 17,692,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,107,863.68 : 30,508,972.89 = 12,820,939.97 : x
  2. Step 2: Convert to fraction form
    22,107,863.68/30,508,972.89 = 12,820,939.97/x
  3. Step 3: Cross multiply
    22,107,863.68x = 30,508,972.89 × 12,820,939.97
  4. Step 4: Simplify right side
    22,107,863.68x = 391,153,709,840,541.81
  5. Step 5: Solve for x
    x = 391,153,709,840,541.81/22,107,863.68
  6. Step 6: Final answer
    x = 17,692,967.33

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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.