Home / 13,923,996.80-20,890,272.60-6,646,743.36

Finding the Fourth Proportional to 13,923,996.80, 20,890,272.60 and 6,646,743.36

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Solution

The fourth proportional to 13,923,996.80, 20,890,272.60 and 6,646,743.36 is: 9,972,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923,996.80 : 20,890,272.60 = 6,646,743.36 : x
  2. Step 2: Convert to fraction form
    13,923,996.80/20,890,272.60 = 6,646,743.36/x
  3. Step 3: Cross multiply
    13,923,996.80x = 20,890,272.60 × 6,646,743.36
  4. Step 4: Simplify right side
    13,923,996.80x = 138,852,280,692,639.95
  5. Step 5: Solve for x
    x = 138,852,280,692,639.95/13,923,996.80
  6. Step 6: Final answer
    x = 9,972,156.90

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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.