Home / 9,906,989.89-13,671,745.08-5,555,982.78

Finding the Fourth Proportional to 9,906,989.89, 13,671,745.08 and 5,555,982.78

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Solution

The fourth proportional to 9,906,989.89, 13,671,745.08 and 5,555,982.78 is: 7,667,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906,989.89 : 13,671,745.08 = 5,555,982.78 : x
  2. Step 2: Convert to fraction form
    9,906,989.89/13,671,745.08 = 5,555,982.78/x
  3. Step 3: Cross multiply
    9,906,989.89x = 13,671,745.08 × 5,555,982.78
  4. Step 4: Simplify right side
    9,906,989.89x = 75,959,980,164,925.75
  5. Step 5: Solve for x
    x = 75,959,980,164,925.75/9,906,989.89
  6. Step 6: Final answer
    x = 7,667,311.77

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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.