Home / 260,136,782.28-390,049,343.34-82,797,321.53

Finding the Fourth Proportional to 260,136,782.28, 390,049,343.34 and 82,797,321.53

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Solution

The fourth proportional to 260,136,782.28, 390,049,343.34 and 82,797,321.53 is: 124,146,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,136,782.28 : 390,049,343.34 = 82,797,321.53 : x
  2. Step 2: Convert to fraction form
    260,136,782.28/390,049,343.34 = 82,797,321.53/x
  3. Step 3: Cross multiply
    260,136,782.28x = 390,049,343.34 × 82,797,321.53
  4. Step 4: Simplify right side
    260,136,782.28x = 32,295,040,891,137,096
  5. Step 5: Solve for x
    x = 32,295,040,891,137,096/260,136,782.28
  6. Step 6: Final answer
    x = 124,146,384.10

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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.