Home / 12,913,314.60-17,821,632.82-9,644,454.20

Finding the Fourth Proportional to 12,913,314.60, 17,821,632.82 and 9,644,454.20

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Solution

The fourth proportional to 12,913,314.60, 17,821,632.82 and 9,644,454.20 is: 13,310,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,314.60 : 17,821,632.82 = 9,644,454.20 : x
  2. Step 2: Convert to fraction form
    12,913,314.60/17,821,632.82 = 9,644,454.20/x
  3. Step 3: Cross multiply
    12,913,314.60x = 17,821,632.82 × 9,644,454.20
  4. Step 4: Simplify right side
    12,913,314.60x = 171,879,921,501,706.84
  5. Step 5: Solve for x
    x = 171,879,921,501,706.84/12,913,314.60
  6. Step 6: Final answer
    x = 13,310,286.85

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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.