Home / 47,615,769.96-71,432,847.90-20,321,664.36

Finding the Fourth Proportional to 47,615,769.96, 71,432,847.90 and 20,321,664.36

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Solution

The fourth proportional to 47,615,769.96, 71,432,847.90 and 20,321,664.36 is: 30,486,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615,769.96 : 71,432,847.90 = 20,321,664.36 : x
  2. Step 2: Convert to fraction form
    47,615,769.96/71,432,847.90 = 20,321,664.36/x
  3. Step 3: Cross multiply
    47,615,769.96x = 71,432,847.90 × 20,321,664.36
  4. Step 4: Simplify right side
    47,615,769.96x = 1,451,634,359,302,731
  5. Step 5: Solve for x
    x = 1,451,634,359,302,731/47,615,769.96
  6. Step 6: Final answer
    x = 30,486,419.95

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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.