Home / 81,405,279.30-122,072,489.55-26,796,764.10

Finding the Fourth Proportional to 81,405,279.30, 122,072,489.55 and 26,796,764.10

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Solution

The fourth proportional to 81,405,279.30, 122,072,489.55 and 26,796,764.10 is: 40,183,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,405,279.30 : 122,072,489.55 = 26,796,764.10 : x
  2. Step 2: Convert to fraction form
    81,405,279.30/122,072,489.55 = 26,796,764.10/x
  3. Step 3: Cross multiply
    81,405,279.30x = 122,072,489.55 × 26,796,764.10
  4. Step 4: Simplify right side
    81,405,279.30x = 3,271,147,705,571,065.50
  5. Step 5: Solve for x
    x = 3,271,147,705,571,065.50/81,405,279.30
  6. Step 6: Final answer
    x = 40,183,483.60

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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.