Home / 664,305,856.20-996,458,784.30-492,118,972.20

Finding the Fourth Proportional to 664,305,856.20, 996,458,784.30 and 492,118,972.20

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Solution

The fourth proportional to 664,305,856.20, 996,458,784.30 and 492,118,972.20 is: 738,178,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,305,856.20 : 996,458,784.30 = 492,118,972.20 : x
  2. Step 2: Convert to fraction form
    664,305,856.20/996,458,784.30 = 492,118,972.20/x
  3. Step 3: Cross multiply
    664,305,856.20x = 996,458,784.30 × 492,118,972.20
  4. Step 4: Simplify right side
    664,305,856.20x = 490,376,272,769,377,472
  5. Step 5: Solve for x
    x = 490,376,272,769,377,472/664,305,856.20
  6. Step 6: Final answer
    x = 738,178,458.30

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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.