Home / 81,001,643.58-111,782,564.37-43,831,924.20

Finding the Fourth Proportional to 81,001,643.58, 111,782,564.37 and 43,831,924.20

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Solution

The fourth proportional to 81,001,643.58, 111,782,564.37 and 43,831,924.20 is: 60,488,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,001,643.58 : 111,782,564.37 = 43,831,924.20 : x
  2. Step 2: Convert to fraction form
    81,001,643.58/111,782,564.37 = 43,831,924.20/x
  3. Step 3: Cross multiply
    81,001,643.58x = 111,782,564.37 × 43,831,924.20
  4. Step 4: Simplify right side
    81,001,643.58x = 4,899,644,888,347,461
  5. Step 5: Solve for x
    x = 4,899,644,888,347,461/81,001,643.58
  6. Step 6: Final answer
    x = 60,488,215.69

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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.