Home / 355,512,713.04-490,608,261.72-198,882,436.32

Finding the Fourth Proportional to 355,512,713.04, 490,608,261.72 and 198,882,436.32

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Solution

The fourth proportional to 355,512,713.04, 490,608,261.72 and 198,882,436.32 is: 274,458,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,512,713.04 : 490,608,261.72 = 198,882,436.32 : x
  2. Step 2: Convert to fraction form
    355,512,713.04/490,608,261.72 = 198,882,436.32/x
  3. Step 3: Cross multiply
    355,512,713.04x = 490,608,261.72 × 198,882,436.32
  4. Step 4: Simplify right side
    355,512,713.04x = 97,573,366,369,593,792
  5. Step 5: Solve for x
    x = 97,573,366,369,593,792/355,512,713.04
  6. Step 6: Final answer
    x = 274,458,163.63

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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.