Home / 289,007,213.14-398,829,953.79-156,848,209.65

Finding the Fourth Proportional to 289,007,213.14, 398,829,953.79 and 156,848,209.65

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Solution

The fourth proportional to 289,007,213.14, 398,829,953.79 and 156,848,209.65 is: 216,450,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,007,213.14 : 398,829,953.79 = 156,848,209.65 : x
  2. Step 2: Convert to fraction form
    289,007,213.14/398,829,953.79 = 156,848,209.65/x
  3. Step 3: Cross multiply
    289,007,213.14x = 398,829,953.79 × 156,848,209.65
  4. Step 4: Simplify right side
    289,007,213.14x = 62,555,764,206,753,736
  5. Step 5: Solve for x
    x = 62,555,764,206,753,736/289,007,213.14
  6. Step 6: Final answer
    x = 216,450,529.13

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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.