Home / 979,272,829.76-1,469,103,107.81-279,770,920.92

Finding the Fourth Proportional to 979,272,829.76, 1,469,103,107.81 and 279,770,920.92

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Solution

The fourth proportional to 979,272,829.76, 1,469,103,107.81 and 279,770,920.92 is: 419,711,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,272,829.76 : 1,469,103,107.81 = 279,770,920.92 : x
  2. Step 2: Convert to fraction form
    979,272,829.76/1,469,103,107.81 = 279,770,920.92/x
  3. Step 3: Cross multiply
    979,272,829.76x = 1,469,103,107.81 × 279,770,920.92
  4. Step 4: Simplify right side
    979,272,829.76x = 411,012,329,397,038,912
  5. Step 5: Solve for x
    x = 411,012,329,397,038,912/979,272,829.76
  6. Step 6: Final answer
    x = 419,711,766.64

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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.