Home / 415,865,086.20-623,797,629.30-109,188,199.80

Finding the Fourth Proportional to 415,865,086.20, 623,797,629.30 and 109,188,199.80

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Solution

The fourth proportional to 415,865,086.20, 623,797,629.30 and 109,188,199.80 is: 163,782,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,865,086.20 : 623,797,629.30 = 109,188,199.80 : x
  2. Step 2: Convert to fraction form
    415,865,086.20/623,797,629.30 = 109,188,199.80/x
  3. Step 3: Cross multiply
    415,865,086.20x = 623,797,629.30 × 109,188,199.80
  4. Step 4: Simplify right side
    415,865,086.20x = 68,111,340,182,774,728
  5. Step 5: Solve for x
    x = 68,111,340,182,774,728/415,865,086.20
  6. Step 6: Final answer
    x = 163,782,299.70

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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.