Home / 284,216,969.78-392,055,735.90-171,107,786.57

Finding the Fourth Proportional to 284,216,969.78, 392,055,735.90 and 171,107,786.57

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Solution

The fourth proportional to 284,216,969.78, 392,055,735.90 and 171,107,786.57 is: 236,030,203.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,216,969.78 : 392,055,735.90 = 171,107,786.57 : x
  2. Step 2: Convert to fraction form
    284,216,969.78/392,055,735.90 = 171,107,786.57/x
  3. Step 3: Cross multiply
    284,216,969.78x = 392,055,735.90 × 171,107,786.57
  4. Step 4: Simplify right side
    284,216,969.78x = 67,083,789,181,921,480
  5. Step 5: Solve for x
    x = 67,083,789,181,921,480/284,216,969.78
  6. Step 6: Final answer
    x = 236,030,203.38

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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.