Home / 354,925,268.88-489,787,847.58-198,293,552.21

Finding the Fourth Proportional to 354,925,268.88, 489,787,847.58 and 198,293,552.21

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Solution

The fourth proportional to 354,925,268.88, 489,787,847.58 and 198,293,552.21 is: 273,640,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,925,268.88 : 489,787,847.58 = 198,293,552.21 : x
  2. Step 2: Convert to fraction form
    354,925,268.88/489,787,847.58 = 198,293,552.21/x
  3. Step 3: Cross multiply
    354,925,268.88x = 489,787,847.58 × 198,293,552.21
  4. Step 4: Simplify right side
    354,925,268.88x = 97,121,772,127,896,320
  5. Step 5: Solve for x
    x = 97,121,772,127,896,320/354,925,268.88
  6. Step 6: Final answer
    x = 273,640,060.72

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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.