Home / 39,305,149.53-54,240,379.65-21,423,524.19

Finding the Fourth Proportional to 39,305,149.53, 54,240,379.65 and 21,423,524.19

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Solution

The fourth proportional to 39,305,149.53, 54,240,379.65 and 21,423,524.19 is: 29,564,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,305,149.53 : 54,240,379.65 = 21,423,524.19 : x
  2. Step 2: Convert to fraction form
    39,305,149.53/54,240,379.65 = 21,423,524.19/x
  3. Step 3: Cross multiply
    39,305,149.53x = 54,240,379.65 × 21,423,524.19
  4. Step 4: Simplify right side
    39,305,149.53x = 1,162,020,085,506,558.75
  5. Step 5: Solve for x
    x = 1,162,020,085,506,558.75/39,305,149.53
  6. Step 6: Final answer
    x = 29,564,067.29

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Double scale
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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.