Home / 20,679,726.06-28,536,904.26-11,385,486.36

Finding the Fourth Proportional to 20,679,726.06, 28,536,904.26 and 11,385,486.36

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Solution

The fourth proportional to 20,679,726.06, 28,536,904.26 and 11,385,486.36 is: 15,711,355.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679,726.06 : 28,536,904.26 = 11,385,486.36 : x
  2. Step 2: Convert to fraction form
    20,679,726.06/28,536,904.26 = 11,385,486.36/x
  3. Step 3: Cross multiply
    20,679,726.06x = 28,536,904.26 × 11,385,486.36
  4. Step 4: Simplify right side
    20,679,726.06x = 324,906,534,208,855.88
  5. Step 5: Solve for x
    x = 324,906,534,208,855.88/20,679,726.06
  6. Step 6: Final answer
    x = 15,711,355.81

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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.