Home / 20,885,581.36-28,820,659.41-11,592,420.36

Finding the Fourth Proportional to 20,885,581.36, 28,820,659.41 and 11,592,420.36

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Solution

The fourth proportional to 20,885,581.36, 28,820,659.41 and 11,592,420.36 is: 15,996,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,581.36 : 28,820,659.41 = 11,592,420.36 : x
  2. Step 2: Convert to fraction form
    20,885,581.36/28,820,659.41 = 11,592,420.36/x
  3. Step 3: Cross multiply
    20,885,581.36x = 28,820,659.41 × 11,592,420.36
  4. Step 4: Simplify right side
    20,885,581.36x = 334,101,198,933,109.56
  5. Step 5: Solve for x
    x = 334,101,198,933,109.56/20,885,581.36
  6. Step 6: Final answer
    x = 15,996,739.24

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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.