Home / 12,455,307.82-17,189,507.91-7,809,828.22

Finding the Fourth Proportional to 12,455,307.82, 17,189,507.91 and 7,809,828.22

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Solution

The fourth proportional to 12,455,307.82, 17,189,507.91 and 7,809,828.22 is: 10,778,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,307.82 : 17,189,507.91 = 7,809,828.22 : x
  2. Step 2: Convert to fraction form
    12,455,307.82/17,189,507.91 = 7,809,828.22/x
  3. Step 3: Cross multiply
    12,455,307.82x = 17,189,507.91 × 7,809,828.22
  4. Step 4: Simplify right side
    12,455,307.82x = 134,247,103,963,431.22
  5. Step 5: Solve for x
    x = 134,247,103,963,431.22/12,455,307.82
  6. Step 6: Final answer
    x = 10,778,304.79

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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.