Home / 629,784,220.80-944,676,331.20-400,768,579.20

Finding the Fourth Proportional to 629,784,220.80, 944,676,331.20 and 400,768,579.20

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Solution

The fourth proportional to 629,784,220.80, 944,676,331.20 and 400,768,579.20 is: 601,152,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,784,220.80 : 944,676,331.20 = 400,768,579.20 : x
  2. Step 2: Convert to fraction form
    629,784,220.80/944,676,331.20 = 400,768,579.20/x
  3. Step 3: Cross multiply
    629,784,220.80x = 944,676,331.20 × 400,768,579.20
  4. Step 4: Simplify right side
    629,784,220.80x = 378,596,591,058,892,608
  5. Step 5: Solve for x
    x = 378,596,591,058,892,608/629,784,220.80
  6. Step 6: Final answer
    x = 601,152,868.80

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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.