Home / 12,641,183.70-17,438,406.73-7,678,304.38

Finding the Fourth Proportional to 12,641,183.70, 17,438,406.73 and 7,678,304.38

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Solution

The fourth proportional to 12,641,183.70, 17,438,406.73 and 7,678,304.38 is: 10,592,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641,183.70 : 17,438,406.73 = 7,678,304.38 : x
  2. Step 2: Convert to fraction form
    12,641,183.70/17,438,406.73 = 7,678,304.38/x
  3. Step 3: Cross multiply
    12,641,183.70x = 17,438,406.73 × 7,678,304.38
  4. Step 4: Simplify right side
    12,641,183.70x = 133,897,394,775,180.48
  5. Step 5: Solve for x
    x = 133,897,394,775,180.48/12,641,183.70
  6. Step 6: Final answer
    x = 10,592,156.40

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1.5x scale

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.