Home / 271,871,939.40-407,967,341.40-99,366,190.80

Finding the Fourth Proportional to 271,871,939.40, 407,967,341.40 and 99,366,190.80

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Solution

The fourth proportional to 271,871,939.40, 407,967,341.40 and 99,366,190.80 is: 149,107,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,871,939.40 : 407,967,341.40 = 99,366,190.80 : x
  2. Step 2: Convert to fraction form
    271,871,939.40/407,967,341.40 = 99,366,190.80/x
  3. Step 3: Cross multiply
    271,871,939.40x = 407,967,341.40 × 99,366,190.80
  4. Step 4: Simplify right side
    271,871,939.40x = 40,538,160,685,721,136
  5. Step 5: Solve for x
    x = 40,538,160,685,721,136/271,871,939.40
  6. Step 6: Final answer
    x = 149,107,556.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.