Home / 919,512,816.40-1,379,269,224.60-482,644,694.80

Finding the Fourth Proportional to 919,512,816.40, 1,379,269,224.60 and 482,644,694.80

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Solution

The fourth proportional to 919,512,816.40, 1,379,269,224.60 and 482,644,694.80 is: 723,967,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,512,816.40 : 1,379,269,224.60 = 482,644,694.80 : x
  2. Step 2: Convert to fraction form
    919,512,816.40/1,379,269,224.60 = 482,644,694.80/x
  3. Step 3: Cross multiply
    919,512,816.40x = 1,379,269,224.60 × 482,644,694.80
  4. Step 4: Simplify right side
    919,512,816.40x = 665,696,973,954,099,584
  5. Step 5: Solve for x
    x = 665,696,973,954,099,584/919,512,816.40
  6. Step 6: Final answer
    x = 723,967,042.20

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Double scale
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1.5x scale

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.