Home / 90,836,976.89-136,207,586.43-39,659,208.59

Finding the Fourth Proportional to 90,836,976.89, 136,207,586.43 and 39,659,208.59

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Solution

The fourth proportional to 90,836,976.89, 136,207,586.43 and 39,659,208.59 is: 59,467,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836,976.89 : 136,207,586.43 = 39,659,208.59 : x
  2. Step 2: Convert to fraction form
    90,836,976.89/136,207,586.43 = 39,659,208.59/x
  3. Step 3: Cross multiply
    90,836,976.89x = 136,207,586.43 × 39,659,208.59
  4. Step 4: Simplify right side
    90,836,976.89x = 5,401,885,081,086,786
  5. Step 5: Solve for x
    x = 5,401,885,081,086,786/90,836,976.89
  6. Step 6: Final answer
    x = 59,467,909.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.