Home / 13,415,843.52-18,512,930.16-7,614,743.40

Finding the Fourth Proportional to 13,415,843.52, 18,512,930.16 and 7,614,743.40

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Solution

The fourth proportional to 13,415,843.52, 18,512,930.16 and 7,614,743.40 is: 10,507,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415,843.52 : 18,512,930.16 = 7,614,743.40 : x
  2. Step 2: Convert to fraction form
    13,415,843.52/18,512,930.16 = 7,614,743.40/x
  3. Step 3: Cross multiply
    13,415,843.52x = 18,512,930.16 × 7,614,743.40
  4. Step 4: Simplify right side
    13,415,843.52x = 140,971,212,750,520.94
  5. Step 5: Solve for x
    x = 140,971,212,750,520.94/13,415,843.52
  6. Step 6: Final answer
    x = 10,507,815.82

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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.