Home / 20,650,929.18-30,981,238.65-20,308,182.54

Finding the Fourth Proportional to 20,650,929.18, 30,981,238.65 and 20,308,182.54

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Solution

The fourth proportional to 20,650,929.18, 30,981,238.65 and 20,308,182.54 is: 30,467,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650,929.18 : 30,981,238.65 = 20,308,182.54 : x
  2. Step 2: Convert to fraction form
    20,650,929.18/30,981,238.65 = 20,308,182.54/x
  3. Step 3: Cross multiply
    20,650,929.18x = 30,981,238.65 × 20,308,182.54
  4. Step 4: Simplify right side
    20,650,929.18x = 629,172,649,819,503.12
  5. Step 5: Solve for x
    x = 629,172,649,819,503.12/20,650,929.18
  6. Step 6: Final answer
    x = 30,467,038.28

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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.