Home / 81,001,627.68-111,782,542.49-43,831,908.25

Finding the Fourth Proportional to 81,001,627.68, 111,782,542.49 and 43,831,908.25

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Solution

The fourth proportional to 81,001,627.68, 111,782,542.49 and 43,831,908.25 is: 60,488,193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,001,627.68 : 111,782,542.49 = 43,831,908.25 : x
  2. Step 2: Convert to fraction form
    81,001,627.68/111,782,542.49 = 43,831,908.25/x
  3. Step 3: Cross multiply
    81,001,627.68x = 111,782,542.49 × 43,831,908.25
  4. Step 4: Simplify right side
    81,001,627.68x = 4,899,642,145,874,791
  5. Step 5: Solve for x
    x = 4,899,642,145,874,791/81,001,627.68
  6. Step 6: Final answer
    x = 60,488,193.71

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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.