Home / 427,942,766.43-641,466,128.12-179,090,601.89

Finding the Fourth Proportional to 427,942,766.43, 641,466,128.12 and 179,090,601.89

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Solution

The fourth proportional to 427,942,766.43, 641,466,128.12 and 179,090,601.89 is: 268,448,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,942,766.43 : 641,466,128.12 = 179,090,601.89 : x
  2. Step 2: Convert to fraction form
    427,942,766.43/641,466,128.12 = 179,090,601.89/x
  3. Step 3: Cross multiply
    427,942,766.43x = 641,466,128.12 × 179,090,601.89
  4. Step 4: Simplify right side
    427,942,766.43x = 114,880,554,972,955,872
  5. Step 5: Solve for x
    x = 114,880,554,972,955,872/427,942,766.43
  6. Step 6: Final answer
    x = 268,448,409.42

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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.