Home / 20,455,712.19-30,661,998.66-6,805,212.57

Finding the Fourth Proportional to 20,455,712.19, 30,661,998.66 and 6,805,212.57

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Solution

The fourth proportional to 20,455,712.19, 30,661,998.66 and 6,805,212.57 is: 10,200,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,712.19 : 30,661,998.66 = 6,805,212.57 : x
  2. Step 2: Convert to fraction form
    20,455,712.19/30,661,998.66 = 6,805,212.57/x
  3. Step 3: Cross multiply
    20,455,712.19x = 30,661,998.66 × 6,805,212.57
  4. Step 4: Simplify right side
    20,455,712.19x = 208,661,418,702,355.16
  5. Step 5: Solve for x
    x = 208,661,418,702,355.16/20,455,712.19
  6. Step 6: Final answer
    x = 10,200,643.07

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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.