Home / 8,420,816.06-11,620,791.86-4,648,995.57

Finding the Fourth Proportional to 8,420,816.06, 11,620,791.86 and 4,648,995.57

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Solution

The fourth proportional to 8,420,816.06, 11,620,791.86 and 4,648,995.57 is: 6,415,650.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,816.06 : 11,620,791.86 = 4,648,995.57 : x
  2. Step 2: Convert to fraction form
    8,420,816.06/11,620,791.86 = 4,648,995.57/x
  3. Step 3: Cross multiply
    8,420,816.06x = 11,620,791.86 × 4,648,995.57
  4. Step 4: Simplify right side
    8,420,816.06x = 54,025,009,853,787.09
  5. Step 5: Solve for x
    x = 54,025,009,853,787.09/8,420,816.06
  6. Step 6: Final answer
    x = 6,415,650.16

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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.