Home / 819,830,422.41-1,228,757,616.86-376,561,421.61

Finding the Fourth Proportional to 819,830,422.41, 1,228,757,616.86 and 376,561,421.61

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Solution

The fourth proportional to 819,830,422.41, 1,228,757,616.86 and 376,561,421.61 is: 564,388,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,830,422.41 : 1,228,757,616.86 = 376,561,421.61 : x
  2. Step 2: Convert to fraction form
    819,830,422.41/1,228,757,616.86 = 376,561,421.61/x
  3. Step 3: Cross multiply
    819,830,422.41x = 1,228,757,616.86 × 376,561,421.61
  4. Step 4: Simplify right side
    819,830,422.41x = 462,702,715,017,034,496
  5. Step 5: Solve for x
    x = 462,702,715,017,034,496/819,830,422.41
  6. Step 6: Final answer
    x = 564,388,320.28

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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.