Home / 13,257,431.46-18,303,660.62-9,078,109.29

Finding the Fourth Proportional to 13,257,431.46, 18,303,660.62 and 9,078,109.29

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Solution

The fourth proportional to 13,257,431.46, 18,303,660.62 and 9,078,109.29 is: 12,533,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257,431.46 : 18,303,660.62 = 9,078,109.29 : x
  2. Step 2: Convert to fraction form
    13,257,431.46/18,303,660.62 = 9,078,109.29/x
  3. Step 3: Cross multiply
    13,257,431.46x = 18,303,660.62 × 9,078,109.29
  4. Step 4: Simplify right side
    13,257,431.46x = 166,162,631,515,429.16
  5. Step 5: Solve for x
    x = 166,162,631,515,429.16/13,257,431.46
  6. Step 6: Final answer
    x = 12,533,546.34

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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.