Home / 399,257,145.54-598,350,396.11-310,732,613.19

Finding the Fourth Proportional to 399,257,145.54, 598,350,396.11 and 310,732,613.19

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Solution

The fourth proportional to 399,257,145.54, 598,350,396.11 and 310,732,613.19 is: 465,682,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,257,145.54 : 598,350,396.11 = 310,732,613.19 : x
  2. Step 2: Convert to fraction form
    399,257,145.54/598,350,396.11 = 310,732,613.19/x
  3. Step 3: Cross multiply
    399,257,145.54x = 598,350,396.11 × 310,732,613.19
  4. Step 4: Simplify right side
    399,257,145.54x = 185,926,982,184,978,240
  5. Step 5: Solve for x
    x = 185,926,982,184,978,240/399,257,145.54
  6. Step 6: Final answer
    x = 465,682,290.88

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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.