Home / 20,802,875.60-31,183,318.20-9,451,470.80

Finding the Fourth Proportional to 20,802,875.60, 31,183,318.20 and 9,451,470.80

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Solution

The fourth proportional to 20,802,875.60, 31,183,318.20 and 9,451,470.80 is: 14,167,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,875.60 : 31,183,318.20 = 9,451,470.80 : x
  2. Step 2: Convert to fraction form
    20,802,875.60/31,183,318.20 = 9,451,470.80/x
  3. Step 3: Cross multiply
    20,802,875.60x = 31,183,318.20 × 9,451,470.80
  4. Step 4: Simplify right side
    20,802,875.60x = 294,728,221,414,408.56
  5. Step 5: Solve for x
    x = 294,728,221,414,408.56/20,802,875.60
  6. Step 6: Final answer
    x = 14,167,667.35

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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.