Home / 489,934,986.60-734,902,479.90-452,521,540.20

Finding the Fourth Proportional to 489,934,986.60, 734,902,479.90 and 452,521,540.20

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Solution

The fourth proportional to 489,934,986.60, 734,902,479.90 and 452,521,540.20 is: 678,782,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,934,986.60 : 734,902,479.90 = 452,521,540.20 : x
  2. Step 2: Convert to fraction form
    489,934,986.60/734,902,479.90 = 452,521,540.20/x
  3. Step 3: Cross multiply
    489,934,986.60x = 734,902,479.90 × 452,521,540.20
  4. Step 4: Simplify right side
    489,934,986.60x = 332,559,202,101,147,520
  5. Step 5: Solve for x
    x = 332,559,202,101,147,520/489,934,986.60
  6. Step 6: Final answer
    x = 678,782,310.30

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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.