Home / 629,774,429.80-944,661,644.70-400,758,788.20

Finding the Fourth Proportional to 629,774,429.80, 944,661,644.70 and 400,758,788.20

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Solution

The fourth proportional to 629,774,429.80, 944,661,644.70 and 400,758,788.20 is: 601,138,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,774,429.80 : 944,661,644.70 = 400,758,788.20 : x
  2. Step 2: Convert to fraction form
    629,774,429.80/944,661,644.70 = 400,758,788.20/x
  3. Step 3: Cross multiply
    629,774,429.80x = 944,661,644.70 × 400,758,788.20
  4. Step 4: Simplify right side
    629,774,429.80x = 378,581,455,988,990,976
  5. Step 5: Solve for x
    x = 378,581,455,988,990,976/629,774,429.80
  6. Step 6: Final answer
    x = 601,138,182.30

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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.