Home / 820,511,655.52-1,132,261,234.80-449,161,854.88

Finding the Fourth Proportional to 820,511,655.52, 1,132,261,234.80 and 449,161,854.88

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Solution

The fourth proportional to 820,511,655.52, 1,132,261,234.80 and 449,161,854.88 is: 619,818,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,511,655.52 : 1,132,261,234.80 = 449,161,854.88 : x
  2. Step 2: Convert to fraction form
    820,511,655.52/1,132,261,234.80 = 449,161,854.88/x
  3. Step 3: Cross multiply
    820,511,655.52x = 1,132,261,234.80 × 449,161,854.88
  4. Step 4: Simplify right side
    820,511,655.52x = 508,568,556,431,487,168
  5. Step 5: Solve for x
    x = 508,568,556,431,487,168/820,511,655.52
  6. Step 6: Final answer
    x = 619,818,808.19

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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.