Home / 120,102,457.72-165,741,635.88-65,098,351.48

Finding the Fourth Proportional to 120,102,457.72, 165,741,635.88 and 65,098,351.48

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Solution

The fourth proportional to 120,102,457.72, 165,741,635.88 and 65,098,351.48 is: 89,835,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,102,457.72 : 165,741,635.88 = 65,098,351.48 : x
  2. Step 2: Convert to fraction form
    120,102,457.72/165,741,635.88 = 65,098,351.48/x
  3. Step 3: Cross multiply
    120,102,457.72x = 165,741,635.88 × 65,098,351.48
  4. Step 4: Simplify right side
    120,102,457.72x = 10,789,507,267,386,418
  5. Step 5: Solve for x
    x = 10,789,507,267,386,418/120,102,457.72
  6. Step 6: Final answer
    x = 89,835,857.42

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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.