Home / 121,993,941.97-168,346,918.11-66,238,086.25

Finding the Fourth Proportional to 121,993,941.97, 168,346,918.11 and 66,238,086.25

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Solution

The fourth proportional to 121,993,941.97, 168,346,918.11 and 66,238,086.25 is: 91,405,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,993,941.97 : 168,346,918.11 = 66,238,086.25 : x
  2. Step 2: Convert to fraction form
    121,993,941.97/168,346,918.11 = 66,238,086.25/x
  3. Step 3: Cross multiply
    121,993,941.97x = 168,346,918.11 × 66,238,086.25
  4. Step 4: Simplify right side
    121,993,941.97x = 11,150,977,681,271,002
  5. Step 5: Solve for x
    x = 11,150,977,681,271,002/121,993,941.97
  6. Step 6: Final answer
    x = 91,405,995.26

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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.