Home / 324,771,108.60-487,156,662.90-221,458,978.20

Finding the Fourth Proportional to 324,771,108.60, 487,156,662.90 and 221,458,978.20

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Solution

The fourth proportional to 324,771,108.60, 487,156,662.90 and 221,458,978.20 is: 332,188,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,771,108.60 : 487,156,662.90 = 221,458,978.20 : x
  2. Step 2: Convert to fraction form
    324,771,108.60/487,156,662.90 = 221,458,978.20/x
  3. Step 3: Cross multiply
    324,771,108.60x = 487,156,662.90 × 221,458,978.20
  4. Step 4: Simplify right side
    324,771,108.60x = 107,885,216,789,155,840
  5. Step 5: Solve for x
    x = 107,885,216,789,155,840/324,771,108.60
  6. Step 6: Final answer
    x = 332,188,467.30

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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.