Home / 28,204,496.01-38,907,879.90-18,420,667.20

Finding the Fourth Proportional to 28,204,496.01, 38,907,879.90 and 18,420,667.20

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Solution

The fourth proportional to 28,204,496.01, 38,907,879.90 and 18,420,667.20 is: 25,411,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204,496.01 : 38,907,879.90 = 18,420,667.20 : x
  2. Step 2: Convert to fraction form
    28,204,496.01/38,907,879.90 = 18,420,667.20/x
  3. Step 3: Cross multiply
    28,204,496.01x = 38,907,879.90 × 18,420,667.20
  4. Step 4: Simplify right side
    28,204,496.01x = 716,709,107,095,469.25
  5. Step 5: Solve for x
    x = 716,709,107,095,469.25/28,204,496.01
  6. Step 6: Final answer
    x = 25,411,165.19

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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.