Home / 9,821,896.40-14,707,961.40-7,831,240.40

Finding the Fourth Proportional to 9,821,896.40, 14,707,961.40 and 7,831,240.40

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Solution

The fourth proportional to 9,821,896.40, 14,707,961.40 and 7,831,240.40 is: 11,727,020.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821,896.40 : 14,707,961.40 = 7,831,240.40 : x
  2. Step 2: Convert to fraction form
    9,821,896.40/14,707,961.40 = 7,831,240.40/x
  3. Step 3: Cross multiply
    9,821,896.40x = 14,707,961.40 × 7,831,240.40
  4. Step 4: Simplify right side
    9,821,896.40x = 115,181,581,517,320.56
  5. Step 5: Solve for x
    x = 115,181,581,517,320.56/9,821,896.40
  6. Step 6: Final answer
    x = 11,727,020.61

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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.