Home / 311,126,756.82-429,372,143.10-171,894,529.26

Finding the Fourth Proportional to 311,126,756.82, 429,372,143.10 and 171,894,529.26

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Solution

The fourth proportional to 311,126,756.82, 429,372,143.10 and 171,894,529.26 is: 237,223,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,126,756.82 : 429,372,143.10 = 171,894,529.26 : x
  2. Step 2: Convert to fraction form
    311,126,756.82/429,372,143.10 = 171,894,529.26/x
  3. Step 3: Cross multiply
    311,126,756.82x = 429,372,143.10 × 171,894,529.26
  4. Step 4: Simplify right side
    311,126,756.82x = 73,806,722,415,531,856
  5. Step 5: Solve for x
    x = 73,806,722,415,531,856/311,126,756.82
  6. Step 6: Final answer
    x = 237,223,963.54

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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.