Home / 399,177,612.40-598,766,418.60-369,317,772.40

Finding the Fourth Proportional to 399,177,612.40, 598,766,418.60 and 369,317,772.40

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Solution

The fourth proportional to 399,177,612.40, 598,766,418.60 and 369,317,772.40 is: 553,976,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,177,612.40 : 598,766,418.60 = 369,317,772.40 : x
  2. Step 2: Convert to fraction form
    399,177,612.40/598,766,418.60 = 369,317,772.40/x
  3. Step 3: Cross multiply
    399,177,612.40x = 598,766,418.60 × 369,317,772.40
  4. Step 4: Simplify right side
    399,177,612.40x = 221,135,079,905,277,920
  5. Step 5: Solve for x
    x = 221,135,079,905,277,920/399,177,612.40
  6. Step 6: Final answer
    x = 553,976,658.60

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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.