Home / 70,491,766.96-105,738,379.50-21,308,028.04

Finding the Fourth Proportional to 70,491,766.96, 105,738,379.50 and 21,308,028.04

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Solution

The fourth proportional to 70,491,766.96, 105,738,379.50 and 21,308,028.04 is: 31,962,262.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,491,766.96 : 105,738,379.50 = 21,308,028.04 : x
  2. Step 2: Convert to fraction form
    70,491,766.96/105,738,379.50 = 21,308,028.04/x
  3. Step 3: Cross multiply
    70,491,766.96x = 105,738,379.50 × 21,308,028.04
  4. Step 4: Simplify right side
    70,491,766.96x = 2,253,076,355,290,161
  5. Step 5: Solve for x
    x = 2,253,076,355,290,161/70,491,766.96
  6. Step 6: Final answer
    x = 31,962,262.44

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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.