Home / 8,179,969.40-12,269,838.90-3,692,238.20

Finding the Fourth Proportional to 8,179,969.40, 12,269,838.90 and 3,692,238.20

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Solution

The fourth proportional to 8,179,969.40, 12,269,838.90 and 3,692,238.20 is: 5,538,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,969.40 : 12,269,838.90 = 3,692,238.20 : x
  2. Step 2: Convert to fraction form
    8,179,969.40/12,269,838.90 = 3,692,238.20/x
  3. Step 3: Cross multiply
    8,179,969.40x = 12,269,838.90 × 3,692,238.20
  4. Step 4: Simplify right side
    8,179,969.40x = 45,303,167,894,425.98
  5. Step 5: Solve for x
    x = 45,303,167,894,425.98/8,179,969.40
  6. Step 6: Final answer
    x = 5,538,305.30

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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.