Home / 405,155,317.50-606,761,882.64-207,899,639.82

Finding the Fourth Proportional to 405,155,317.50, 606,761,882.64 and 207,899,639.82

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Solution

The fourth proportional to 405,155,317.50, 606,761,882.64 and 207,899,639.82 is: 311,351,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,155,317.50 : 606,761,882.64 = 207,899,639.82 : x
  2. Step 2: Convert to fraction form
    405,155,317.50/606,761,882.64 = 207,899,639.82/x
  3. Step 3: Cross multiply
    405,155,317.50x = 606,761,882.64 × 207,899,639.82
  4. Step 4: Simplify right side
    405,155,317.50x = 126,145,576,857,361,104
  5. Step 5: Solve for x
    x = 126,145,576,857,361,104/405,155,317.50
  6. Step 6: Final answer
    x = 311,351,156.97

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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.