Home / 13,972,999.80-20,953,750.32-5,340,288.72

Finding the Fourth Proportional to 13,972,999.80, 20,953,750.32 and 5,340,288.72

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Solution

The fourth proportional to 13,972,999.80, 20,953,750.32 and 5,340,288.72 is: 8,008,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972,999.80 : 20,953,750.32 = 5,340,288.72 : x
  2. Step 2: Convert to fraction form
    13,972,999.80/20,953,750.32 = 5,340,288.72/x
  3. Step 3: Cross multiply
    13,972,999.80x = 20,953,750.32 × 5,340,288.72
  4. Step 4: Simplify right side
    13,972,999.80x = 111,899,076,475,592.39
  5. Step 5: Solve for x
    x = 111,899,076,475,592.39/13,972,999.80
  6. Step 6: Final answer
    x = 8,008,235.75

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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.