Home / 8,179,838.40-12,269,642.40-3,692,107.20

Finding the Fourth Proportional to 8,179,838.40, 12,269,642.40 and 3,692,107.20

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Solution

The fourth proportional to 8,179,838.40, 12,269,642.40 and 3,692,107.20 is: 5,538,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,838.40 : 12,269,642.40 = 3,692,107.20 : x
  2. Step 2: Convert to fraction form
    8,179,838.40/12,269,642.40 = 3,692,107.20/x
  3. Step 3: Cross multiply
    8,179,838.40x = 12,269,642.40 × 3,692,107.20
  4. Step 4: Simplify right side
    8,179,838.40x = 45,300,835,046,465.28
  5. Step 5: Solve for x
    x = 45,300,835,046,465.28/8,179,838.40
  6. Step 6: Final answer
    x = 5,538,108.80

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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.