Home / 13,553,716.80-18,704,129.30-7,442,145.32

Finding the Fourth Proportional to 13,553,716.80, 18,704,129.30 and 7,442,145.32

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Solution

The fourth proportional to 13,553,716.80, 18,704,129.30 and 7,442,145.32 is: 10,270,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553,716.80 : 18,704,129.30 = 7,442,145.32 : x
  2. Step 2: Convert to fraction form
    13,553,716.80/18,704,129.30 = 7,442,145.32/x
  3. Step 3: Cross multiply
    13,553,716.80x = 18,704,129.30 × 7,442,145.32
  4. Step 4: Simplify right side
    13,553,716.80x = 139,198,848,334,669.89
  5. Step 5: Solve for x
    x = 139,198,848,334,669.89/13,553,716.80
  6. Step 6: Final answer
    x = 10,270,160.61

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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.