Home / 20,308,085.05-28,024,991.50-11,015,631.86

Finding the Fourth Proportional to 20,308,085.05, 28,024,991.50 and 11,015,631.86

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Solution

The fourth proportional to 20,308,085.05, 28,024,991.50 and 11,015,631.86 is: 15,201,481.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,085.05 : 28,024,991.50 = 11,015,631.86 : x
  2. Step 2: Convert to fraction form
    20,308,085.05/28,024,991.50 = 11,015,631.86/x
  3. Step 3: Cross multiply
    20,308,085.05x = 28,024,991.50 × 11,015,631.86
  4. Step 4: Simplify right side
    20,308,085.05x = 308,712,989,096,630.50
  5. Step 5: Solve for x
    x = 308,712,989,096,630.50/20,308,085.05
  6. Step 6: Final answer
    x = 15,201,481.99

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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.