Home / 13,680,744.80-20,508,286.80-5,166,802.40

Finding the Fourth Proportional to 13,680,744.80, 20,508,286.80 and 5,166,802.40

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Solution

The fourth proportional to 13,680,744.80, 20,508,286.80 and 5,166,802.40 is: 7,745,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680,744.80 : 20,508,286.80 = 5,166,802.40 : x
  2. Step 2: Convert to fraction form
    13,680,744.80/20,508,286.80 = 5,166,802.40/x
  3. Step 3: Cross multiply
    13,680,744.80x = 20,508,286.80 × 5,166,802.40
  4. Step 4: Simplify right side
    13,680,744.80x = 105,962,265,458,128.33
  5. Step 5: Solve for x
    x = 105,962,265,458,128.33/13,680,744.80
  6. Step 6: Final answer
    x = 7,745,357.95

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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.