Home / 18,266,628.65-25,202,016.36-12,455,321.30

Finding the Fourth Proportional to 18,266,628.65, 25,202,016.36 and 12,455,321.30

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Solution

The fourth proportional to 18,266,628.65, 25,202,016.36 and 12,455,321.30 is: 17,184,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266,628.65 : 25,202,016.36 = 12,455,321.30 : x
  2. Step 2: Convert to fraction form
    18,266,628.65/25,202,016.36 = 12,455,321.30/x
  3. Step 3: Cross multiply
    18,266,628.65x = 25,202,016.36 × 12,455,321.30
  4. Step 4: Simplify right side
    18,266,628.65x = 313,899,211,171,656.50
  5. Step 5: Solve for x
    x = 313,899,211,171,656.50/18,266,628.65
  6. Step 6: Final answer
    x = 17,184,299.15

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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.