Home / 13,946,890.40-20,916,188.40-5,422,320.80

Finding the Fourth Proportional to 13,946,890.40, 20,916,188.40 and 5,422,320.80

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Solution

The fourth proportional to 13,946,890.40, 20,916,188.40 and 5,422,320.80 is: 8,131,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946,890.40 : 20,916,188.40 = 5,422,320.80 : x
  2. Step 2: Convert to fraction form
    13,946,890.40/20,916,188.40 = 5,422,320.80/x
  3. Step 3: Cross multiply
    13,946,890.40x = 20,916,188.40 × 5,422,320.80
  4. Step 4: Simplify right side
    13,946,890.40x = 113,414,283,418,038.70
  5. Step 5: Solve for x
    x = 113,414,283,418,038.70/13,946,890.40
  6. Step 6: Final answer
    x = 8,131,868.84

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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.