Home / 13,667,100.96-18,860,992.95-7,555,923.12

Finding the Fourth Proportional to 13,667,100.96, 18,860,992.95 and 7,555,923.12

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Solution

The fourth proportional to 13,667,100.96, 18,860,992.95 and 7,555,923.12 is: 10,427,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667,100.96 : 18,860,992.95 = 7,555,923.12 : x
  2. Step 2: Convert to fraction form
    13,667,100.96/18,860,992.95 = 7,555,923.12/x
  3. Step 3: Cross multiply
    13,667,100.96x = 18,860,992.95 × 7,555,923.12
  4. Step 4: Simplify right side
    13,667,100.96x = 142,512,212,697,062
  5. Step 5: Solve for x
    x = 142,512,212,697,062/13,667,100.96
  6. Step 6: Final answer
    x = 10,427,391.52

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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.