Home / 355,067,282-490,007,981.75-198,434,384.38

Finding the Fourth Proportional to 355,067,282, 490,007,981.75 and 198,434,384.38

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Solution

The fourth proportional to 355,067,282, 490,007,981.75 and 198,434,384.38 is: 273,847,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,067,282 : 490,007,981.75 = 198,434,384.38 : x
  2. Step 2: Convert to fraction form
    355,067,282/490,007,981.75 = 198,434,384.38/x
  3. Step 3: Cross multiply
    355,067,282x = 490,007,981.75 × 198,434,384.38
  4. Step 4: Simplify right side
    355,067,282x = 97,234,432,199,847,520
  5. Step 5: Solve for x
    x = 97,234,432,199,847,520/355,067,282
  6. Step 6: Final answer
    x = 273,847,907.51

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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.