Home / 521,453,650.20-782,285,451.30-152,987,890.20

Finding the Fourth Proportional to 521,453,650.20, 782,285,451.30 and 152,987,890.20

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Solution

The fourth proportional to 521,453,650.20, 782,285,451.30 and 152,987,890.20 is: 229,512,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,453,650.20 : 782,285,451.30 = 152,987,890.20 : x
  2. Step 2: Convert to fraction form
    521,453,650.20/782,285,451.30 = 152,987,890.20/x
  3. Step 3: Cross multiply
    521,453,650.20x = 782,285,451.30 × 152,987,890.20
  4. Step 4: Simplify right side
    521,453,650.20x = 119,680,200,728,541,824
  5. Step 5: Solve for x
    x = 119,680,200,728,541,824/521,453,650.20
  6. Step 6: Final answer
    x = 229,512,633.93

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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.