Home / 20,797,679.37-28,691,126.13-13,457,884.62

Finding the Fourth Proportional to 20,797,679.37, 28,691,126.13 and 13,457,884.62

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Solution

The fourth proportional to 20,797,679.37, 28,691,126.13 and 13,457,884.62 is: 18,565,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797,679.37 : 28,691,126.13 = 13,457,884.62 : x
  2. Step 2: Convert to fraction form
    20,797,679.37/28,691,126.13 = 13,457,884.62/x
  3. Step 3: Cross multiply
    20,797,679.37x = 28,691,126.13 × 13,457,884.62
  4. Step 4: Simplify right side
    20,797,679.37x = 386,121,865,233,465.88
  5. Step 5: Solve for x
    x = 386,121,865,233,465.88/20,797,679.37
  6. Step 6: Final answer
    x = 18,565,622.55

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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.