Home / 355,067,283-490,007,983.13-198,434,385.38

Finding the Fourth Proportional to 355,067,283, 490,007,983.13 and 198,434,385.38

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Solution

The fourth proportional to 355,067,283, 490,007,983.13 and 198,434,385.38 is: 273,847,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,067,283 : 490,007,983.13 = 198,434,385.38 : x
  2. Step 2: Convert to fraction form
    355,067,283/490,007,983.13 = 198,434,385.38/x
  3. Step 3: Cross multiply
    355,067,283x = 490,007,983.13 × 198,434,385.38
  4. Step 4: Simplify right side
    355,067,283x = 97,234,432,963,694,960
  5. Step 5: Solve for x
    x = 97,234,432,963,694,960/355,067,283
  6. Step 6: Final answer
    x = 273,847,908.89

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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.