Home / 38,638,286.12-53,322,113.22-21,235,248.20

Finding the Fourth Proportional to 38,638,286.12, 53,322,113.22 and 21,235,248.20

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Solution

The fourth proportional to 38,638,286.12, 53,322,113.22 and 21,235,248.20 is: 29,305,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,638,286.12 : 53,322,113.22 = 21,235,248.20 : x
  2. Step 2: Convert to fraction form
    38,638,286.12/53,322,113.22 = 21,235,248.20/x
  3. Step 3: Cross multiply
    38,638,286.12x = 53,322,113.22 × 21,235,248.20
  4. Step 4: Simplify right side
    38,638,286.12x = 1,132,308,308,775,201.25
  5. Step 5: Solve for x
    x = 1,132,308,308,775,201.25/38,638,286.12
  6. Step 6: Final answer
    x = 29,305,345.10

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Double scale
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Similar ratio
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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.