Home / 38,770,637.69-53,503,480.31-21,366,983.10

Finding the Fourth Proportional to 38,770,637.69, 53,503,480.31 and 21,366,983.10

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Solution

The fourth proportional to 38,770,637.69, 53,503,480.31 and 21,366,983.10 is: 29,486,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,770,637.69 : 53,503,480.31 = 21,366,983.10 : x
  2. Step 2: Convert to fraction form
    38,770,637.69/53,503,480.31 = 21,366,983.10/x
  3. Step 3: Cross multiply
    38,770,637.69x = 53,503,480.31 × 21,366,983.10
  4. Step 4: Simplify right side
    38,770,637.69x = 1,143,207,959,574,953
  5. Step 5: Solve for x
    x = 1,143,207,959,574,953/38,770,637.69
  6. Step 6: Final answer
    x = 29,486,436.84

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Double scale
Find fourth proportional to 38,770,638.69, 53,503,481.69 and 21,366,984.10
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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.