Home / 819,606,686.82-1,229,496,150.66-266,952,150.21

Finding the Fourth Proportional to 819,606,686.82, 1,229,496,150.66 and 266,952,150.21

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Solution

The fourth proportional to 819,606,686.82, 1,229,496,150.66 and 266,952,150.21 is: 400,456,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,606,686.82 : 1,229,496,150.66 = 266,952,150.21 : x
  2. Step 2: Convert to fraction form
    819,606,686.82/1,229,496,150.66 = 266,952,150.21/x
  3. Step 3: Cross multiply
    819,606,686.82x = 1,229,496,150.66 × 266,952,150.21
  4. Step 4: Simplify right side
    819,606,686.82x = 328,216,641,090,279,232
  5. Step 5: Solve for x
    x = 328,216,641,090,279,232/819,606,686.82
  6. Step 6: Final answer
    x = 400,456,275.39

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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.