Home / 120,102,458.72-165,741,637.26-65,098,352.48

Finding the Fourth Proportional to 120,102,458.72, 165,741,637.26 and 65,098,352.48

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Solution

The fourth proportional to 120,102,458.72, 165,741,637.26 and 65,098,352.48 is: 89,835,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,102,458.72 : 165,741,637.26 = 65,098,352.48 : x
  2. Step 2: Convert to fraction form
    120,102,458.72/165,741,637.26 = 65,098,352.48/x
  3. Step 3: Cross multiply
    120,102,458.72x = 165,741,637.26 × 65,098,352.48
  4. Step 4: Simplify right side
    120,102,458.72x = 10,789,507,522,963,780
  5. Step 5: Solve for x
    x = 10,789,507,522,963,780/120,102,458.72
  6. Step 6: Final answer
    x = 89,835,858.80

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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.