Home / 819,606,686.25-1,229,496,149.81-266,952,149.64

Finding the Fourth Proportional to 819,606,686.25, 1,229,496,149.81 and 266,952,149.64

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Solution

The fourth proportional to 819,606,686.25, 1,229,496,149.81 and 266,952,149.64 is: 400,456,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,606,686.25 : 1,229,496,149.81 = 266,952,149.64 : x
  2. Step 2: Convert to fraction form
    819,606,686.25/1,229,496,149.81 = 266,952,149.64/x
  3. Step 3: Cross multiply
    819,606,686.25x = 1,229,496,149.81 × 266,952,149.64
  4. Step 4: Simplify right side
    819,606,686.25x = 328,216,640,166,550,336
  5. Step 5: Solve for x
    x = 328,216,640,166,550,336/819,606,686.25
  6. Step 6: Final answer
    x = 400,456,274.54

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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.