Home / 38,639,907.80-57,959,861.70-20,724,003.80

Finding the Fourth Proportional to 38,639,907.80, 57,959,861.70 and 20,724,003.80

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Solution

The fourth proportional to 38,639,907.80, 57,959,861.70 and 20,724,003.80 is: 31,086,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,907.80 : 57,959,861.70 = 20,724,003.80 : x
  2. Step 2: Convert to fraction form
    38,639,907.80/57,959,861.70 = 20,724,003.80/x
  3. Step 3: Cross multiply
    38,639,907.80x = 57,959,861.70 × 20,724,003.80
  4. Step 4: Simplify right side
    38,639,907.80x = 1,201,160,394,118,274.50
  5. Step 5: Solve for x
    x = 1,201,160,394,118,274.50/38,639,907.80
  6. Step 6: Final answer
    x = 31,086,005.70

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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.