Home / 38,809,799.60-53,557,305.30-21,406,103.15

Finding the Fourth Proportional to 38,809,799.60, 53,557,305.30 and 21,406,103.15

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Solution

The fourth proportional to 38,809,799.60, 53,557,305.30 and 21,406,103.15 is: 29,540,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809,799.60 : 53,557,305.30 = 21,406,103.15 : x
  2. Step 2: Convert to fraction form
    38,809,799.60/53,557,305.30 = 21,406,103.15/x
  3. Step 3: Cross multiply
    38,809,799.60x = 53,557,305.30 × 21,406,103.15
  4. Step 4: Simplify right side
    38,809,799.60x = 1,146,453,201,420,055
  5. Step 5: Solve for x
    x = 1,146,453,201,420,055/38,809,799.60
  6. Step 6: Final answer
    x = 29,540,302.02

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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.