Home / 9,821,863.90-14,707,912.65-7,831,207.90

Finding the Fourth Proportional to 9,821,863.90, 14,707,912.65 and 7,831,207.90

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Solution

The fourth proportional to 9,821,863.90, 14,707,912.65 and 7,831,207.90 is: 11,726,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821,863.90 : 14,707,912.65 = 7,831,207.90 : x
  2. Step 2: Convert to fraction form
    9,821,863.90/14,707,912.65 = 7,831,207.90/x
  3. Step 3: Cross multiply
    9,821,863.90x = 14,707,912.65 × 7,831,207.90
  4. Step 4: Simplify right side
    9,821,863.90x = 115,180,721,737,189.94
  5. Step 5: Solve for x
    x = 115,180,721,737,189.94/9,821,863.90
  6. Step 6: Final answer
    x = 11,726,971.88

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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.