Home / 20,515,331.60-30,772,997.40-8,546,512.40

Finding the Fourth Proportional to 20,515,331.60, 30,772,997.40 and 8,546,512.40

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Solution

The fourth proportional to 20,515,331.60, 30,772,997.40 and 8,546,512.40 is: 12,819,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,331.60 : 30,772,997.40 = 8,546,512.40 : x
  2. Step 2: Convert to fraction form
    20,515,331.60/30,772,997.40 = 8,546,512.40/x
  3. Step 3: Cross multiply
    20,515,331.60x = 30,772,997.40 × 8,546,512.40
  4. Step 4: Simplify right side
    20,515,331.60x = 263,001,803,864,267.75
  5. Step 5: Solve for x
    x = 263,001,803,864,267.75/20,515,331.60
  6. Step 6: Final answer
    x = 12,819,768.60

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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.