Home / 9,821,868.90-14,707,920.15-7,831,212.90

Finding the Fourth Proportional to 9,821,868.90, 14,707,920.15 and 7,831,212.90

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Solution

The fourth proportional to 9,821,868.90, 14,707,920.15 and 7,831,212.90 is: 11,726,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821,868.90 : 14,707,920.15 = 7,831,212.90 : x
  2. Step 2: Convert to fraction form
    9,821,868.90/14,707,920.15 = 7,831,212.90/x
  3. Step 3: Cross multiply
    9,821,868.90x = 14,707,920.15 × 7,831,212.90
  4. Step 4: Simplify right side
    9,821,868.90x = 115,180,854,010,849.94
  5. Step 5: Solve for x
    x = 115,180,854,010,849.94/9,821,868.90
  6. Step 6: Final answer
    x = 11,726,979.37

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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.