Home / 489,780,647.72-675,897,302.05-269,764,073.72

Finding the Fourth Proportional to 489,780,647.72, 675,897,302.05 and 269,764,073.72

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Solution

The fourth proportional to 489,780,647.72, 675,897,302.05 and 269,764,073.72 is: 372,274,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,780,647.72 : 675,897,302.05 = 269,764,073.72 : x
  2. Step 2: Convert to fraction form
    489,780,647.72/675,897,302.05 = 269,764,073.72/x
  3. Step 3: Cross multiply
    489,780,647.72x = 675,897,302.05 × 269,764,073.72
  4. Step 4: Simplify right side
    489,780,647.72x = 182,332,809,617,362,112
  5. Step 5: Solve for x
    x = 182,332,809,617,362,112/489,780,647.72
  6. Step 6: Final answer
    x = 372,274,426.25

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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.