Home / 12,916,415.81-17,824,697.85-7,115,183.70

Finding the Fourth Proportional to 12,916,415.81, 17,824,697.85 and 7,115,183.70

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Solution

The fourth proportional to 12,916,415.81, 17,824,697.85 and 7,115,183.70 is: 9,818,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916,415.81 : 17,824,697.85 = 7,115,183.70 : x
  2. Step 2: Convert to fraction form
    12,916,415.81/17,824,697.85 = 7,115,183.70/x
  3. Step 3: Cross multiply
    12,916,415.81x = 17,824,697.85 × 7,115,183.70
  4. Step 4: Simplify right side
    12,916,415.81x = 126,825,999,599,745.06
  5. Step 5: Solve for x
    x = 126,825,999,599,745.06/12,916,415.81
  6. Step 6: Final answer
    x = 9,818,977.77

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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.