Home / 13,947,130.44-20,920,905.60-5,311,708.20

Finding the Fourth Proportional to 13,947,130.44, 20,920,905.60 and 5,311,708.20

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Solution

The fourth proportional to 13,947,130.44, 20,920,905.60 and 5,311,708.20 is: 7,967,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947,130.44 : 20,920,905.60 = 5,311,708.20 : x
  2. Step 2: Convert to fraction form
    13,947,130.44/20,920,905.60 = 5,311,708.20/x
  3. Step 3: Cross multiply
    13,947,130.44x = 20,920,905.60 × 5,311,708.20
  4. Step 4: Simplify right side
    13,947,130.44x = 111,125,745,826,945.94
  5. Step 5: Solve for x
    x = 111,125,745,826,945.94/13,947,130.44
  6. Step 6: Final answer
    x = 7,967,642.25

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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.