Home / 28,161,783.46-38,856,600.21-15,938,640.46

Finding the Fourth Proportional to 28,161,783.46, 38,856,600.21 and 15,938,640.46

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Solution

The fourth proportional to 28,161,783.46, 38,856,600.21 and 15,938,640.46 is: 21,991,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,783.46 : 38,856,600.21 = 15,938,640.46 : x
  2. Step 2: Convert to fraction form
    28,161,783.46/38,856,600.21 = 15,938,640.46/x
  3. Step 3: Cross multiply
    28,161,783.46x = 38,856,600.21 × 15,938,640.46
  4. Step 4: Simplify right side
    28,161,783.46x = 619,321,380,245,150.50
  5. Step 5: Solve for x
    x = 619,321,380,245,150.50/28,161,783.46
  6. Step 6: Final answer
    x = 21,991,553.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.