Home / 39,988,939.07-55,184,722.45-21,654,224.57

Finding the Fourth Proportional to 39,988,939.07, 55,184,722.45 and 21,654,224.57

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Solution

The fourth proportional to 39,988,939.07, 55,184,722.45 and 21,654,224.57 is: 29,882,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988,939.07 : 55,184,722.45 = 21,654,224.57 : x
  2. Step 2: Convert to fraction form
    39,988,939.07/55,184,722.45 = 21,654,224.57/x
  3. Step 3: Cross multiply
    39,988,939.07x = 55,184,722.45 × 21,654,224.57
  4. Step 4: Simplify right side
    39,988,939.07x = 1,194,982,372,849,247
  5. Step 5: Solve for x
    x = 1,194,982,372,849,247/39,988,939.07
  6. Step 6: Final answer
    x = 29,882,822.61

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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.