Home / 54,263,139.80-81,394,709.70-20,177,432.60

Finding the Fourth Proportional to 54,263,139.80, 81,394,709.70 and 20,177,432.60

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Solution

The fourth proportional to 54,263,139.80, 81,394,709.70 and 20,177,432.60 is: 30,266,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,263,139.80 : 81,394,709.70 = 20,177,432.60 : x
  2. Step 2: Convert to fraction form
    54,263,139.80/81,394,709.70 = 20,177,432.60/x
  3. Step 3: Cross multiply
    54,263,139.80x = 81,394,709.70 × 20,177,432.60
  4. Step 4: Simplify right side
    54,263,139.80x = 1,642,336,268,968,316.50
  5. Step 5: Solve for x
    x = 1,642,336,268,968,316.50/54,263,139.80
  6. Step 6: Final answer
    x = 30,266,148.90

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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.