Home / 17,238,085.80-25,857,128.70-7,643,279.40

Finding the Fourth Proportional to 17,238,085.80, 25,857,128.70 and 7,643,279.40

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Solution

The fourth proportional to 17,238,085.80, 25,857,128.70 and 7,643,279.40 is: 11,464,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,238,085.80 : 25,857,128.70 = 7,643,279.40 : x
  2. Step 2: Convert to fraction form
    17,238,085.80/25,857,128.70 = 7,643,279.40/x
  3. Step 3: Cross multiply
    17,238,085.80x = 25,857,128.70 × 7,643,279.40
  4. Step 4: Simplify right side
    17,238,085.80x = 197,633,259,135,858.78
  5. Step 5: Solve for x
    x = 197,633,259,135,858.78/17,238,085.80
  6. Step 6: Final answer
    x = 11,464,919.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.