Home / 117,561,872.87-162,215,774.37-65,343,808.80

Finding the Fourth Proportional to 117,561,872.87, 162,215,774.37 and 65,343,808.80

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Solution

The fourth proportional to 117,561,872.87, 162,215,774.37 and 65,343,808.80 is: 90,163,556.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,561,872.87 : 162,215,774.37 = 65,343,808.80 : x
  2. Step 2: Convert to fraction form
    117,561,872.87/162,215,774.37 = 65,343,808.80/x
  3. Step 3: Cross multiply
    117,561,872.87x = 162,215,774.37 × 65,343,808.80
  4. Step 4: Simplify right side
    117,561,872.87x = 10,599,796,544,777,220
  5. Step 5: Solve for x
    x = 10,599,796,544,777,220/117,561,872.87
  6. Step 6: Final answer
    x = 90,163,556.32

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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.