Home / 20,947,883.10-28,907,625.36-12,127,706.28

Finding the Fourth Proportional to 20,947,883.10, 28,907,625.36 and 12,127,706.28

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Solution

The fourth proportional to 20,947,883.10, 28,907,625.36 and 12,127,706.28 is: 16,735,972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,883.10 : 28,907,625.36 = 12,127,706.28 : x
  2. Step 2: Convert to fraction form
    20,947,883.10/28,907,625.36 = 12,127,706.28/x
  3. Step 3: Cross multiply
    20,947,883.10x = 28,907,625.36 × 12,127,706.28
  4. Step 4: Simplify right side
    20,947,883.10x = 350,583,189,618,359.25
  5. Step 5: Solve for x
    x = 350,583,189,618,359.25/20,947,883.10
  6. Step 6: Final answer
    x = 16,735,972.22

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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.