Home / 20,630,831.60-28,469,299.56-11,463,160.88

Finding the Fourth Proportional to 20,630,831.60, 28,469,299.56 and 11,463,160.88

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Solution

The fourth proportional to 20,630,831.60, 28,469,299.56 and 11,463,160.88 is: 15,818,468.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,630,831.60 : 28,469,299.56 = 11,463,160.88 : x
  2. Step 2: Convert to fraction form
    20,630,831.60/28,469,299.56 = 11,463,160.88/x
  3. Step 3: Cross multiply
    20,630,831.60x = 28,469,299.56 × 11,463,160.88
  4. Step 4: Simplify right side
    20,630,831.60x = 326,348,160,997,193.25
  5. Step 5: Solve for x
    x = 326,348,160,997,193.25/20,630,831.60
  6. Step 6: Final answer
    x = 15,818,468.56

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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.