Home / 121,507,720.82-167,627,219.87-71,246,284.56

Finding the Fourth Proportional to 121,507,720.82, 167,627,219.87 and 71,246,284.56

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Solution

The fourth proportional to 121,507,720.82, 167,627,219.87 and 71,246,284.56 is: 98,288,541.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,507,720.82 : 167,627,219.87 = 71,246,284.56 : x
  2. Step 2: Convert to fraction form
    121,507,720.82/167,627,219.87 = 71,246,284.56/x
  3. Step 3: Cross multiply
    121,507,720.82x = 167,627,219.87 × 71,246,284.56
  4. Step 4: Simplify right side
    121,507,720.82x = 11,942,816,605,665,340
  5. Step 5: Solve for x
    x = 11,942,816,605,665,340/121,507,720.82
  6. Step 6: Final answer
    x = 98,288,541.05

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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.