Home / 20,443,157.31-28,211,557.18-11,150,726.90

Finding the Fourth Proportional to 20,443,157.31, 28,211,557.18 and 11,150,726.90

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Solution

The fourth proportional to 20,443,157.31, 28,211,557.18 and 11,150,726.90 is: 15,388,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443,157.31 : 28,211,557.18 = 11,150,726.90 : x
  2. Step 2: Convert to fraction form
    20,443,157.31/28,211,557.18 = 11,150,726.90/x
  3. Step 3: Cross multiply
    20,443,157.31x = 28,211,557.18 × 11,150,726.90
  4. Step 4: Simplify right side
    20,443,157.31x = 314,579,369,595,633.25
  5. Step 5: Solve for x
    x = 314,579,369,595,633.25/20,443,157.31
  6. Step 6: Final answer
    x = 15,388,003.17

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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.