Home / 258,276,489.71-356,418,151.97-145,245,948.03

Finding the Fourth Proportional to 258,276,489.71, 356,418,151.97 and 145,245,948.03

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Solution

The fourth proportional to 258,276,489.71, 356,418,151.97 and 145,245,948.03 is: 200,437,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,276,489.71 : 356,418,151.97 = 145,245,948.03 : x
  2. Step 2: Convert to fraction form
    258,276,489.71/356,418,151.97 = 145,245,948.03/x
  3. Step 3: Cross multiply
    258,276,489.71x = 356,418,151.97 × 145,245,948.03
  4. Step 4: Simplify right side
    258,276,489.71x = 51,768,292,377,257,032
  5. Step 5: Solve for x
    x = 51,768,292,377,257,032/258,276,489.71
  6. Step 6: Final answer
    x = 200,437,494.08

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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.