Home / 81,129,347.23-111,958,889.01-43,959,617.68

Finding the Fourth Proportional to 81,129,347.23, 111,958,889.01 and 43,959,617.68

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Solution

The fourth proportional to 81,129,347.23, 111,958,889.01 and 43,959,617.68 is: 60,664,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,129,347.23 : 111,958,889.01 = 43,959,617.68 : x
  2. Step 2: Convert to fraction form
    81,129,347.23/111,958,889.01 = 43,959,617.68/x
  3. Step 3: Cross multiply
    81,129,347.23x = 111,958,889.01 × 43,959,617.68
  4. Step 4: Simplify right side
    81,129,347.23x = 4,921,669,956,522,442
  5. Step 5: Solve for x
    x = 4,921,669,956,522,442/81,129,347.23
  6. Step 6: Final answer
    x = 60,664,483.63

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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.