Home / 38,070,111.60-57,105,167.40-20,154,207.60

Finding the Fourth Proportional to 38,070,111.60, 57,105,167.40 and 20,154,207.60

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Solution

The fourth proportional to 38,070,111.60, 57,105,167.40 and 20,154,207.60 is: 30,231,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,070,111.60 : 57,105,167.40 = 20,154,207.60 : x
  2. Step 2: Convert to fraction form
    38,070,111.60/57,105,167.40 = 20,154,207.60/x
  3. Step 3: Cross multiply
    38,070,111.60x = 57,105,167.40 × 20,154,207.60
  4. Step 4: Simplify right side
    38,070,111.60x = 1,150,909,398,812,352.25
  5. Step 5: Solve for x
    x = 1,150,909,398,812,352.25/38,070,111.60
  6. Step 6: Final answer
    x = 30,231,311.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.