Home / 81,093,912.96-111,819,896.64-51,678,618.24

Finding the Fourth Proportional to 81,093,912.96, 111,819,896.64 and 51,678,618.24

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Solution

The fourth proportional to 81,093,912.96, 111,819,896.64 and 51,678,618.24 is: 71,259,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093,912.96 : 111,819,896.64 = 51,678,618.24 : x
  2. Step 2: Convert to fraction form
    81,093,912.96/111,819,896.64 = 51,678,618.24/x
  3. Step 3: Cross multiply
    81,093,912.96x = 111,819,896.64 × 51,678,618.24
  4. Step 4: Simplify right side
    81,093,912.96x = 5,778,697,750,094,819
  5. Step 5: Solve for x
    x = 5,778,697,750,094,819/81,093,912.96
  6. Step 6: Final answer
    x = 71,259,328.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.