Home / 20,782,910.30-31,174,365.45-15,744,062.30

Finding the Fourth Proportional to 20,782,910.30, 31,174,365.45 and 15,744,062.30

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Solution

The fourth proportional to 20,782,910.30, 31,174,365.45 and 15,744,062.30 is: 23,616,093.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,782,910.30 : 31,174,365.45 = 15,744,062.30 : x
  2. Step 2: Convert to fraction form
    20,782,910.30/31,174,365.45 = 15,744,062.30/x
  3. Step 3: Cross multiply
    20,782,910.30x = 31,174,365.45 × 15,744,062.30
  4. Step 4: Simplify right side
    20,782,910.30x = 490,811,151,807,767.56
  5. Step 5: Solve for x
    x = 490,811,151,807,767.56/20,782,910.30
  6. Step 6: Final answer
    x = 23,616,093.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.