Home / 101,228,250,847.20-151,842,376,270.80-84,820,753,989.60

Finding the Fourth Proportional to 101,228,250,847.20, 151,842,376,270.80 and 84,820,753,989.60

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Solution

The fourth proportional to 101,228,250,847.20, 151,842,376,270.80 and 84,820,753,989.60 is: 127,231,130,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,228,250,847.20 : 151,842,376,270.80 = 84,820,753,989.60 : x
  2. Step 2: Convert to fraction form
    101,228,250,847.20/151,842,376,270.80 = 84,820,753,989.60/x
  3. Step 3: Cross multiply
    101,228,250,847.20x = 151,842,376,270.80 × 84,820,753,989.60
  4. Step 4: Simplify right side
    101,228,250,847.20x = 12,879,384,842,861,803,470,848
  5. Step 5: Solve for x
    x = 12,879,384,842,861,803,470,848/101,228,250,847.20
  6. Step 6: Final answer
    x = 127,231,130,984.40

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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.