Home / 38,632,609.71-53,313,425.73-21,228,959.43

Finding the Fourth Proportional to 38,632,609.71, 53,313,425.73 and 21,228,959.43

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Solution

The fourth proportional to 38,632,609.71, 53,313,425.73 and 21,228,959.43 is: 29,296,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632,609.71 : 53,313,425.73 = 21,228,959.43 : x
  2. Step 2: Convert to fraction form
    38,632,609.71/53,313,425.73 = 21,228,959.43/x
  3. Step 3: Cross multiply
    38,632,609.71x = 53,313,425.73 × 21,228,959.43
  4. Step 4: Simplify right side
    38,632,609.71x = 1,131,788,551,896,488
  5. Step 5: Solve for x
    x = 1,131,788,551,896,488/38,632,609.71
  6. Step 6: Final answer
    x = 29,296,197.19

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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.