Home / 39,239,813.71-54,150,513.19-21,598,339.08

Finding the Fourth Proportional to 39,239,813.71, 54,150,513.19 and 21,598,339.08

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Solution

The fourth proportional to 39,239,813.71, 54,150,513.19 and 21,598,339.08 is: 29,805,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239,813.71 : 54,150,513.19 = 21,598,339.08 : x
  2. Step 2: Convert to fraction form
    39,239,813.71/54,150,513.19 = 21,598,339.08/x
  3. Step 3: Cross multiply
    39,239,813.71x = 54,150,513.19 × 21,598,339.08
  4. Step 4: Simplify right side
    39,239,813.71x = 1,169,561,145,078,104.50
  5. Step 5: Solve for x
    x = 1,169,561,145,078,104.50/39,239,813.71
  6. Step 6: Final answer
    x = 29,805,471.39

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Double scale
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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.