Home / 13,319,961.94-18,381,540.09-7,518,793.78

Finding the Fourth Proportional to 13,319,961.94, 18,381,540.09 and 7,518,793.78

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Solution

The fourth proportional to 13,319,961.94, 18,381,540.09 and 7,518,793.78 is: 10,375,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,961.94 : 18,381,540.09 = 7,518,793.78 : x
  2. Step 2: Convert to fraction form
    13,319,961.94/18,381,540.09 = 7,518,793.78/x
  3. Step 3: Cross multiply
    13,319,961.94x = 18,381,540.09 × 7,518,793.78
  4. Step 4: Simplify right side
    13,319,961.94x = 138,207,009,295,512.64
  5. Step 5: Solve for x
    x = 138,207,009,295,512.64/13,319,961.94
  6. Step 6: Final answer
    x = 10,375,931.25

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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.