Home / 13,620,038.97-20,430,436.32-3,384,485.31

Finding the Fourth Proportional to 13,620,038.97, 20,430,436.32 and 3,384,485.31

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Solution

The fourth proportional to 13,620,038.97, 20,430,436.32 and 3,384,485.31 is: 5,076,821.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,038.97 : 20,430,436.32 = 3,384,485.31 : x
  2. Step 2: Convert to fraction form
    13,620,038.97/20,430,436.32 = 3,384,485.31/x
  3. Step 3: Cross multiply
    13,620,038.97x = 20,430,436.32 × 3,384,485.31
  4. Step 4: Simplify right side
    13,620,038.97x = 69,146,511,601,930.46
  5. Step 5: Solve for x
    x = 69,146,511,601,930.46/13,620,038.97
  6. Step 6: Final answer
    x = 5,076,821.86

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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.