Home / 491,805,444.24-678,692,174.40-282,957,398.10

Finding the Fourth Proportional to 491,805,444.24, 678,692,174.40 and 282,957,398.10

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Solution

The fourth proportional to 491,805,444.24, 678,692,174.40 and 282,957,398.10 is: 390,481,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805,444.24 : 678,692,174.40 = 282,957,398.10 : x
  2. Step 2: Convert to fraction form
    491,805,444.24/678,692,174.40 = 282,957,398.10/x
  3. Step 3: Cross multiply
    491,805,444.24x = 678,692,174.40 × 282,957,398.10
  4. Step 4: Simplify right side
    491,805,444.24x = 192,040,971,779,055,424
  5. Step 5: Solve for x
    x = 192,040,971,779,055,424/491,805,444.24
  6. Step 6: Final answer
    x = 390,481,589.88

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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.