Home / 20,465,083.92-28,240,117.92-11,642,187.69

Finding the Fourth Proportional to 20,465,083.92, 28,240,117.92 and 11,642,187.69

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Solution

The fourth proportional to 20,465,083.92, 28,240,117.92 and 11,642,187.69 is: 16,065,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465,083.92 : 28,240,117.92 = 11,642,187.69 : x
  2. Step 2: Convert to fraction form
    20,465,083.92/28,240,117.92 = 11,642,187.69/x
  3. Step 3: Cross multiply
    20,465,083.92x = 28,240,117.92 × 11,642,187.69
  4. Step 4: Simplify right side
    20,465,083.92x = 328,776,753,212,372.44
  5. Step 5: Solve for x
    x = 328,776,753,212,372.44/20,465,083.92
  6. Step 6: Final answer
    x = 16,065,253.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.