Home / 28,204,493.48-38,907,876.44-18,420,664.67

Finding the Fourth Proportional to 28,204,493.48, 38,907,876.44 and 18,420,664.67

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Solution

The fourth proportional to 28,204,493.48, 38,907,876.44 and 18,420,664.67 is: 25,411,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,493.48 : 38,907,876.44 = 18,420,664.67 : x
  2. Step 2: Convert to fraction form
    28,204,493.48/38,907,876.44 = 18,420,664.67/x
  3. Step 3: Cross multiply
    28,204,493.48x = 38,907,876.44 × 18,420,664.67
  4. Step 4: Simplify right side
    28,204,493.48x = 716,708,944,851,372.62
  5. Step 5: Solve for x
    x = 716,708,944,851,372.62/28,204,493.48
  6. Step 6: Final answer
    x = 25,411,161.71

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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.