Home / 20,469,677.31-28,236,313.40-13,226,333.31

Finding the Fourth Proportional to 20,469,677.31, 28,236,313.40 and 13,226,333.31

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Solution

The fourth proportional to 20,469,677.31, 28,236,313.40 and 13,226,333.31 is: 18,244,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469,677.31 : 28,236,313.40 = 13,226,333.31 : x
  2. Step 2: Convert to fraction form
    20,469,677.31/28,236,313.40 = 13,226,333.31/x
  3. Step 3: Cross multiply
    20,469,677.31x = 28,236,313.40 × 13,226,333.31
  4. Step 4: Simplify right side
    20,469,677.31x = 373,462,892,407,887.69
  5. Step 5: Solve for x
    x = 373,462,892,407,887.69/20,469,677.31
  6. Step 6: Final answer
    x = 18,244,688.80

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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.