Home / 355,007,113.62-489,900,419.14-198,375,507.69

Finding the Fourth Proportional to 355,007,113.62, 489,900,419.14 and 198,375,507.69

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Solution

The fourth proportional to 355,007,113.62, 489,900,419.14 and 198,375,507.69 is: 273,752,949.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,007,113.62 : 489,900,419.14 = 198,375,507.69 : x
  2. Step 2: Convert to fraction form
    355,007,113.62/489,900,419.14 = 198,375,507.69/x
  3. Step 3: Cross multiply
    355,007,113.62x = 489,900,419.14 × 198,375,507.69
  4. Step 4: Simplify right side
    355,007,113.62x = 97,184,244,361,495,856
  5. Step 5: Solve for x
    x = 97,184,244,361,495,856/355,007,113.62
  6. Step 6: Final answer
    x = 273,752,949.26

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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.