Home / 20,386,724.40-30,580,086.60-8,261,996.40

Finding the Fourth Proportional to 20,386,724.40, 30,580,086.60 and 8,261,996.40

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Solution

The fourth proportional to 20,386,724.40, 30,580,086.60 and 8,261,996.40 is: 12,392,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,724.40 : 30,580,086.60 = 8,261,996.40 : x
  2. Step 2: Convert to fraction form
    20,386,724.40/30,580,086.60 = 8,261,996.40/x
  3. Step 3: Cross multiply
    20,386,724.40x = 30,580,086.60 × 8,261,996.40
  4. Step 4: Simplify right side
    20,386,724.40x = 252,652,565,400,888.25
  5. Step 5: Solve for x
    x = 252,652,565,400,888.25/20,386,724.40
  6. Step 6: Final answer
    x = 12,392,994.60

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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.