Home / 20,101,657.56-30,162,450.06-7,970,861.04

Finding the Fourth Proportional to 20,101,657.56, 30,162,450.06 and 7,970,861.04

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Solution

The fourth proportional to 20,101,657.56, 30,162,450.06 and 7,970,861.04 is: 11,960,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,657.56 : 30,162,450.06 = 7,970,861.04 : x
  2. Step 2: Convert to fraction form
    20,101,657.56/30,162,450.06 = 7,970,861.04/x
  3. Step 3: Cross multiply
    20,101,657.56x = 30,162,450.06 × 7,970,861.04
  4. Step 4: Simplify right side
    20,101,657.56x = 240,420,698,054,199.66
  5. Step 5: Solve for x
    x = 240,420,698,054,199.66/20,101,657.56
  6. Step 6: Final answer
    x = 11,960,242.45

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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.