Home / 120,221,736.66-165,906,312.27-65,217,593.16

Finding the Fourth Proportional to 120,221,736.66, 165,906,312.27 and 65,217,593.16

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Solution

The fourth proportional to 120,221,736.66, 165,906,312.27 and 65,217,593.16 is: 90,000,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,221,736.66 : 165,906,312.27 = 65,217,593.16 : x
  2. Step 2: Convert to fraction form
    120,221,736.66/165,906,312.27 = 65,217,593.16/x
  3. Step 3: Cross multiply
    120,221,736.66x = 165,906,312.27 × 65,217,593.16
  4. Step 4: Simplify right side
    120,221,736.66x = 10,820,010,376,300,776
  5. Step 5: Solve for x
    x = 10,820,010,376,300,776/120,221,736.66
  6. Step 6: Final answer
    x = 90,000,449.81

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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.