Home / 438,903,290.68-658,501,286.64-291,930,266.92

Finding the Fourth Proportional to 438,903,290.68, 658,501,286.64 and 291,930,266.92

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Solution

The fourth proportional to 438,903,290.68, 658,501,286.64 and 291,930,266.92 is: 437,992,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,903,290.68 : 658,501,286.64 = 291,930,266.92 : x
  2. Step 2: Convert to fraction form
    438,903,290.68/658,501,286.64 = 291,930,266.92/x
  3. Step 3: Cross multiply
    438,903,290.68x = 658,501,286.64 × 291,930,266.92
  4. Step 4: Simplify right side
    438,903,290.68x = 192,236,456,375,978,624
  5. Step 5: Solve for x
    x = 192,236,456,375,978,624/438,903,290.68
  6. Step 6: Final answer
    x = 437,992,743.41

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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.