Home / 12,820,003.92-17,691,656.94-7,019,325.36

Finding the Fourth Proportional to 12,820,003.92, 17,691,656.94 and 7,019,325.36

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Solution

The fourth proportional to 12,820,003.92, 17,691,656.94 and 7,019,325.36 is: 9,686,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,003.92 : 17,691,656.94 = 7,019,325.36 : x
  2. Step 2: Convert to fraction form
    12,820,003.92/17,691,656.94 = 7,019,325.36/x
  3. Step 3: Cross multiply
    12,820,003.92x = 17,691,656.94 × 7,019,325.36
  4. Step 4: Simplify right side
    12,820,003.92x = 124,183,496,219,362.02
  5. Step 5: Solve for x
    x = 124,183,496,219,362.02/12,820,003.92
  6. Step 6: Final answer
    x = 9,686,697.21

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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.