Home / 801,426,990.72-1,106,086,006.48-449,026,801.44

Finding the Fourth Proportional to 801,426,990.72, 1,106,086,006.48 and 449,026,801.44

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Solution

The fourth proportional to 801,426,990.72, 1,106,086,006.48 and 449,026,801.44 is: 619,722,404.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,426,990.72 : 1,106,086,006.48 = 449,026,801.44 : x
  2. Step 2: Convert to fraction form
    801,426,990.72/1,106,086,006.48 = 449,026,801.44/x
  3. Step 3: Cross multiply
    801,426,990.72x = 1,106,086,006.48 × 449,026,801.44
  4. Step 4: Simplify right side
    801,426,990.72x = 496,662,261,607,257,536
  5. Step 5: Solve for x
    x = 496,662,261,607,257,536/801,426,990.72
  6. Step 6: Final answer
    x = 619,722,404.36

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1.5x scale

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.