Home / 489,435,356.89-675,437,107.25-274,891,809.47

Finding the Fourth Proportional to 489,435,356.89, 675,437,107.25 and 274,891,809.47

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Solution

The fourth proportional to 489,435,356.89, 675,437,107.25 and 274,891,809.47 is: 379,359,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,435,356.89 : 675,437,107.25 = 274,891,809.47 : x
  2. Step 2: Convert to fraction form
    489,435,356.89/675,437,107.25 = 274,891,809.47/x
  3. Step 3: Cross multiply
    489,435,356.89x = 675,437,107.25 × 274,891,809.47
  4. Step 4: Simplify right side
    489,435,356.89x = 185,672,128,595,134,976
  5. Step 5: Solve for x
    x = 185,672,128,595,134,976/489,435,356.89
  6. Step 6: Final answer
    x = 379,359,860.26

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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.