Home / 45,596,845.88-68,385,012.12-20,981,160.46

Finding the Fourth Proportional to 45,596,845.88, 68,385,012.12 and 20,981,160.46

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Solution

The fourth proportional to 45,596,845.88, 68,385,012.12 and 20,981,160.46 is: 31,467,021.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,596,845.88 : 68,385,012.12 = 20,981,160.46 : x
  2. Step 2: Convert to fraction form
    45,596,845.88/68,385,012.12 = 20,981,160.46/x
  3. Step 3: Cross multiply
    45,596,845.88x = 68,385,012.12 × 20,981,160.46
  4. Step 4: Simplify right side
    45,596,845.88x = 1,434,796,912,177,802.25
  5. Step 5: Solve for x
    x = 1,434,796,912,177,802.25/45,596,845.88
  6. Step 6: Final answer
    x = 31,467,021.12

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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.