Home / 300,987,220.50-451,556,675.91-85,576,468.50

Finding the Fourth Proportional to 300,987,220.50, 451,556,675.91 and 85,576,468.50

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Solution

The fourth proportional to 300,987,220.50, 451,556,675.91 and 85,576,468.50 is: 128,386,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,987,220.50 : 451,556,675.91 = 85,576,468.50 : x
  2. Step 2: Convert to fraction form
    300,987,220.50/451,556,675.91 = 85,576,468.50/x
  3. Step 3: Cross multiply
    300,987,220.50x = 451,556,675.91 × 85,576,468.50
  4. Step 4: Simplify right side
    300,987,220.50x = 38,642,625,651,976,824
  5. Step 5: Solve for x
    x = 38,642,625,651,976,824/300,987,220.50
  6. Step 6: Final answer
    x = 128,386,266.99

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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.