Home / 13,319,275.81-18,380,600.66-7,207,704.31

Finding the Fourth Proportional to 13,319,275.81, 18,380,600.66 and 7,207,704.31

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Solution

The fourth proportional to 13,319,275.81, 18,380,600.66 and 7,207,704.31 is: 9,946,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,275.81 : 18,380,600.66 = 7,207,704.31 : x
  2. Step 2: Convert to fraction form
    13,319,275.81/18,380,600.66 = 7,207,704.31/x
  3. Step 3: Cross multiply
    13,319,275.81x = 18,380,600.66 × 7,207,704.31
  4. Step 4: Simplify right side
    13,319,275.81x = 132,481,934,597,470.84
  5. Step 5: Solve for x
    x = 132,481,934,597,470.84/13,319,275.81
  6. Step 6: Final answer
    x = 9,946,631.97

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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.