Home / 8,320,640.40-12,485,107.80-4,729,165.20

Finding the Fourth Proportional to 8,320,640.40, 12,485,107.80 and 4,729,165.20

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Solution

The fourth proportional to 8,320,640.40, 12,485,107.80 and 4,729,165.20 is: 7,096,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,640.40 : 12,485,107.80 = 4,729,165.20 : x
  2. Step 2: Convert to fraction form
    8,320,640.40/12,485,107.80 = 4,729,165.20/x
  3. Step 3: Cross multiply
    8,320,640.40x = 12,485,107.80 × 4,729,165.20
  4. Step 4: Simplify right side
    8,320,640.40x = 59,044,137,326,008.56
  5. Step 5: Solve for x
    x = 59,044,137,326,008.56/8,320,640.40
  6. Step 6: Final answer
    x = 7,096,104.93

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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.