Home / 8,320,643.40-12,485,112.30-4,729,168.20

Finding the Fourth Proportional to 8,320,643.40, 12,485,112.30 and 4,729,168.20

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Solution

The fourth proportional to 8,320,643.40, 12,485,112.30 and 4,729,168.20 is: 7,096,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,643.40 : 12,485,112.30 = 4,729,168.20 : x
  2. Step 2: Convert to fraction form
    8,320,643.40/12,485,112.30 = 4,729,168.20/x
  3. Step 3: Cross multiply
    8,320,643.40x = 12,485,112.30 × 4,729,168.20
  4. Step 4: Simplify right side
    8,320,643.40x = 59,044,196,062,588.87
  5. Step 5: Solve for x
    x = 59,044,196,062,588.87/8,320,643.40
  6. Step 6: Final answer
    x = 7,096,109.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.