Home / 764,411,748.60-1,146,617,622.90-419,231,998.20

Finding the Fourth Proportional to 764,411,748.60, 1,146,617,622.90 and 419,231,998.20

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Solution

The fourth proportional to 764,411,748.60, 1,146,617,622.90 and 419,231,998.20 is: 628,847,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,411,748.60 : 1,146,617,622.90 = 419,231,998.20 : x
  2. Step 2: Convert to fraction form
    764,411,748.60/1,146,617,622.90 = 419,231,998.20/x
  3. Step 3: Cross multiply
    764,411,748.60x = 1,146,617,622.90 × 419,231,998.20
  4. Step 4: Simplify right side
    764,411,748.60x = 480,698,797,219,701,120
  5. Step 5: Solve for x
    x = 480,698,797,219,701,120/764,411,748.60
  6. Step 6: Final answer
    x = 628,847,997.30

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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.