Home / 685,092,225.84-945,428,183.94-371,826,439.80

Finding the Fourth Proportional to 685,092,225.84, 945,428,183.94 and 371,826,439.80

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Solution

The fourth proportional to 685,092,225.84, 945,428,183.94 and 371,826,439.80 is: 513,120,982.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,092,225.84 : 945,428,183.94 = 371,826,439.80 : x
  2. Step 2: Convert to fraction form
    685,092,225.84/945,428,183.94 = 371,826,439.80/x
  3. Step 3: Cross multiply
    685,092,225.84x = 945,428,183.94 × 371,826,439.80
  4. Step 4: Simplify right side
    685,092,225.84x = 351,535,195,720,989,760
  5. Step 5: Solve for x
    x = 351,535,195,720,989,760/685,092,225.84
  6. Step 6: Final answer
    x = 513,120,982.05

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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.