Home / 71,216,645.43-106,810,021.12-20,086,706.82

Finding the Fourth Proportional to 71,216,645.43, 106,810,021.12 and 20,086,706.82

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Solution

The fourth proportional to 71,216,645.43, 106,810,021.12 and 20,086,706.82 is: 30,125,844.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,216,645.43 : 106,810,021.12 = 20,086,706.82 : x
  2. Step 2: Convert to fraction form
    71,216,645.43/106,810,021.12 = 20,086,706.82/x
  3. Step 3: Cross multiply
    71,216,645.43x = 106,810,021.12 × 20,086,706.82
  4. Step 4: Simplify right side
    71,216,645.43x = 2,145,461,579,675,448.25
  5. Step 5: Solve for x
    x = 2,145,461,579,675,448.25/71,216,645.43
  6. Step 6: Final answer
    x = 30,125,844.41

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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.