Home / 788,711,849.10-1,183,175,384.85-328,542,401.70

Finding the Fourth Proportional to 788,711,849.10, 1,183,175,384.85 and 328,542,401.70

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Solution

The fourth proportional to 788,711,849.10, 1,183,175,384.85 and 328,542,401.70 is: 492,858,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,711,849.10 : 1,183,175,384.85 = 328,542,401.70 : x
  2. Step 2: Convert to fraction form
    788,711,849.10/1,183,175,384.85 = 328,542,401.70/x
  3. Step 3: Cross multiply
    788,711,849.10x = 1,183,175,384.85 × 328,542,401.70
  4. Step 4: Simplify right side
    788,711,849.10x = 388,723,282,570,940,736
  5. Step 5: Solve for x
    x = 388,723,282,570,940,736/788,711,849.10
  6. Step 6: Final answer
    x = 492,858,428.61

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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.