Home / 13,250,515.35-18,285,601.17-7,449,322.89

Finding the Fourth Proportional to 13,250,515.35, 18,285,601.17 and 7,449,322.89

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Solution

The fourth proportional to 13,250,515.35, 18,285,601.17 and 7,449,322.89 is: 10,280,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250,515.35 : 18,285,601.17 = 7,449,322.89 : x
  2. Step 2: Convert to fraction form
    13,250,515.35/18,285,601.17 = 7,449,322.89/x
  3. Step 3: Cross multiply
    13,250,515.35x = 18,285,601.17 × 7,449,322.89
  4. Step 4: Simplify right side
    13,250,515.35x = 136,215,347,353,091.78
  5. Step 5: Solve for x
    x = 136,215,347,353,091.78/13,250,515.35
  6. Step 6: Final answer
    x = 10,280,003.74

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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.