Home / 12,883,228.12-17,778,912.42-7,082,383.60

Finding the Fourth Proportional to 12,883,228.12, 17,778,912.42 and 7,082,383.60

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Solution

The fourth proportional to 12,883,228.12, 17,778,912.42 and 7,082,383.60 is: 9,773,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883,228.12 : 17,778,912.42 = 7,082,383.60 : x
  2. Step 2: Convert to fraction form
    12,883,228.12/17,778,912.42 = 7,082,383.60/x
  3. Step 3: Cross multiply
    12,883,228.12x = 17,778,912.42 × 7,082,383.60
  4. Step 4: Simplify right side
    12,883,228.12x = 125,917,077,749,244.31
  5. Step 5: Solve for x
    x = 125,917,077,749,244.31/12,883,228.12
  6. Step 6: Final answer
    x = 9,773,721.04

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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.