Home / 354,989,033.91-489,903,790.46-198,359,943.03

Finding the Fourth Proportional to 354,989,033.91, 489,903,790.46 and 198,359,943.03

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Solution

The fourth proportional to 354,989,033.91, 489,903,790.46 and 198,359,943.03 is: 273,747,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,989,033.91 : 489,903,790.46 = 198,359,943.03 : x
  2. Step 2: Convert to fraction form
    354,989,033.91/489,903,790.46 = 198,359,943.03/x
  3. Step 3: Cross multiply
    354,989,033.91x = 489,903,790.46 × 198,359,943.03
  4. Step 4: Simplify right side
    354,989,033.91x = 97,177,287,965,826,656
  5. Step 5: Solve for x
    x = 97,177,287,965,826,656/354,989,033.91
  6. Step 6: Final answer
    x = 273,747,295.50

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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.