Home / 403,286,569.85-604,929,854.78-198,912,553.85

Finding the Fourth Proportional to 403,286,569.85, 604,929,854.78 and 198,912,553.85

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Solution

The fourth proportional to 403,286,569.85, 604,929,854.78 and 198,912,553.85 is: 298,368,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,286,569.85 : 604,929,854.78 = 198,912,553.85 : x
  2. Step 2: Convert to fraction form
    403,286,569.85/604,929,854.78 = 198,912,553.85/x
  3. Step 3: Cross multiply
    403,286,569.85x = 604,929,854.78 × 198,912,553.85
  4. Step 4: Simplify right side
    403,286,569.85x = 120,328,142,313,404,864
  5. Step 5: Solve for x
    x = 120,328,142,313,404,864/403,286,569.85
  6. Step 6: Final answer
    x = 298,368,830.78

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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.