Home / 196,979,112.96-296,813,195.52-161,863,941.12

Finding the Fourth Proportional to 196,979,112.96, 296,813,195.52 and 161,863,941.12

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Solution

The fourth proportional to 196,979,112.96, 296,813,195.52 and 161,863,941.12 is: 243,900,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,979,112.96 : 296,813,195.52 = 161,863,941.12 : x
  2. Step 2: Convert to fraction form
    196,979,112.96/296,813,195.52 = 161,863,941.12/x
  3. Step 3: Cross multiply
    196,979,112.96x = 296,813,195.52 × 161,863,941.12
  4. Step 4: Simplify right side
    196,979,112.96x = 48,043,353,603,288,328
  5. Step 5: Solve for x
    x = 48,043,353,603,288,328/196,979,112.96
  6. Step 6: Final answer
    x = 243,900,751.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.