Home / 491,055,644.66-677,555,629.78-282,171,431.01

Finding the Fourth Proportional to 491,055,644.66, 677,555,629.78 and 282,171,431.01

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Solution

The fourth proportional to 491,055,644.66, 677,555,629.78 and 282,171,431.01 is: 389,338,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,055,644.66 : 677,555,629.78 = 282,171,431.01 : x
  2. Step 2: Convert to fraction form
    491,055,644.66/677,555,629.78 = 282,171,431.01/x
  3. Step 3: Cross multiply
    491,055,644.66x = 677,555,629.78 × 282,171,431.01
  4. Step 4: Simplify right side
    491,055,644.66x = 191,186,841,643,198,944
  5. Step 5: Solve for x
    x = 191,186,841,643,198,944/491,055,644.66
  6. Step 6: Final answer
    x = 389,338,446.10

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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.