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Finding the Fourth Proportional to 298,834,774.62, 447,332,792.43 and 194,980,356.30

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Solution

The fourth proportional to 298,834,774.62, 447,332,792.43 and 194,980,356.30 is: 291,870,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,834,774.62 : 447,332,792.43 = 194,980,356.30 : x
  2. Step 2: Convert to fraction form
    298,834,774.62/447,332,792.43 = 194,980,356.30/x
  3. Step 3: Cross multiply
    298,834,774.62x = 447,332,792.43 × 194,980,356.30
  4. Step 4: Simplify right side
    298,834,774.62x = 87,221,107,252,675,344
  5. Step 5: Solve for x
    x = 87,221,107,252,675,344/298,834,774.62
  6. Step 6: Final answer
    x = 291,870,674.57

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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.