Home / 13,922,345.39-20,904,018.31-7,786,348.87

Finding the Fourth Proportional to 13,922,345.39, 20,904,018.31 and 7,786,348.87

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Solution

The fourth proportional to 13,922,345.39, 20,904,018.31 and 7,786,348.87 is: 11,690,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922,345.39 : 20,904,018.31 = 7,786,348.87 : x
  2. Step 2: Convert to fraction form
    13,922,345.39/20,904,018.31 = 7,786,348.87/x
  3. Step 3: Cross multiply
    13,922,345.39x = 20,904,018.31 × 7,786,348.87
  4. Step 4: Simplify right side
    13,922,345.39x = 162,765,979,242,007.72
  5. Step 5: Solve for x
    x = 162,765,979,242,007.72/13,922,345.39
  6. Step 6: Final answer
    x = 11,690,988.46

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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.