Home / 456,480,915.82-685,164,148.30-220,296,650.28

Finding the Fourth Proportional to 456,480,915.82, 685,164,148.30 and 220,296,650.28

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Solution

The fourth proportional to 456,480,915.82, 685,164,148.30 and 220,296,650.28 is: 330,658,657.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,480,915.82 : 685,164,148.30 = 220,296,650.28 : x
  2. Step 2: Convert to fraction form
    456,480,915.82/685,164,148.30 = 220,296,650.28/x
  3. Step 3: Cross multiply
    456,480,915.82x = 685,164,148.30 × 220,296,650.28
  4. Step 4: Simplify right side
    456,480,915.82x = 150,939,366,762,439,136
  5. Step 5: Solve for x
    x = 150,939,366,762,439,136/456,480,915.82
  6. Step 6: Final answer
    x = 330,658,657.42

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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.