Home / 996,659,998.40-1,494,989,997.60-478,965,605.60

Finding the Fourth Proportional to 996,659,998.40, 1,494,989,997.60 and 478,965,605.60

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Solution

The fourth proportional to 996,659,998.40, 1,494,989,997.60 and 478,965,605.60 is: 718,448,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,659,998.40 : 1,494,989,997.60 = 478,965,605.60 : x
  2. Step 2: Convert to fraction form
    996,659,998.40/1,494,989,997.60 = 478,965,605.60/x
  3. Step 3: Cross multiply
    996,659,998.40x = 1,494,989,997.60 × 478,965,605.60
  4. Step 4: Simplify right side
    996,659,998.40x = 716,048,789,566,426,496
  5. Step 5: Solve for x
    x = 716,048,789,566,426,496/996,659,998.40
  6. Step 6: Final answer
    x = 718,448,408.40

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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.