Home / 263,167,440.20-394,788,485.10-81,395,664.20

Finding the Fourth Proportional to 263,167,440.20, 394,788,485.10 and 81,395,664.20

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Solution

The fourth proportional to 263,167,440.20, 394,788,485.10 and 81,395,664.20 is: 122,105,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,167,440.20 : 394,788,485.10 = 81,395,664.20 : x
  2. Step 2: Convert to fraction form
    263,167,440.20/394,788,485.10 = 81,395,664.20/x
  3. Step 3: Cross multiply
    263,167,440.20x = 394,788,485.10 × 81,395,664.20
  4. Step 4: Simplify right side
    263,167,440.20x = 32,134,070,963,226,308
  5. Step 5: Solve for x
    x = 32,134,070,963,226,308/263,167,440.20
  6. Step 6: Final answer
    x = 122,105,040.57

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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.