Home / 216,513,189.20-324,769,783.80-54,955,125.20

Finding the Fourth Proportional to 216,513,189.20, 324,769,783.80 and 54,955,125.20

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Solution

The fourth proportional to 216,513,189.20, 324,769,783.80 and 54,955,125.20 is: 82,432,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,513,189.20 : 324,769,783.80 = 54,955,125.20 : x
  2. Step 2: Convert to fraction form
    216,513,189.20/324,769,783.80 = 54,955,125.20/x
  3. Step 3: Cross multiply
    216,513,189.20x = 324,769,783.80 × 54,955,125.20
  4. Step 4: Simplify right side
    216,513,189.20x = 17,847,764,129,905,934
  5. Step 5: Solve for x
    x = 17,847,764,129,905,934/216,513,189.20
  6. Step 6: Final answer
    x = 82,432,687.80

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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.