Home / 79,440,782.58-119,160,997.56-21,148,474.86

Finding the Fourth Proportional to 79,440,782.58, 119,160,997.56 and 21,148,474.86

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Solution

The fourth proportional to 79,440,782.58, 119,160,997.56 and 21,148,474.86 is: 31,722,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440,782.58 : 119,160,997.56 = 21,148,474.86 : x
  2. Step 2: Convert to fraction form
    79,440,782.58/119,160,997.56 = 21,148,474.86/x
  3. Step 3: Cross multiply
    79,440,782.58x = 119,160,997.56 × 21,148,474.86
  4. Step 4: Simplify right side
    79,440,782.58x = 2,520,073,361,190,181.50
  5. Step 5: Solve for x
    x = 2,520,073,361,190,181.50/79,440,782.58
  6. Step 6: Final answer
    x = 31,722,665.35

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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.