Home / 81,001,634.58-111,782,551.96-43,831,915.21

Finding the Fourth Proportional to 81,001,634.58, 111,782,551.96 and 43,831,915.21

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Solution

The fourth proportional to 81,001,634.58, 111,782,551.96 and 43,831,915.21 is: 60,488,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,001,634.58 : 111,782,551.96 = 43,831,915.21 : x
  2. Step 2: Convert to fraction form
    81,001,634.58/111,782,551.96 = 43,831,915.21/x
  3. Step 3: Cross multiply
    81,001,634.58x = 111,782,551.96 × 43,831,915.21
  4. Step 4: Simplify right side
    81,001,634.58x = 4,899,643,338,786,995
  5. Step 5: Solve for x
    x = 4,899,643,338,786,995/81,001,634.58
  6. Step 6: Final answer
    x = 60,488,203.28

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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.