Home / 664,991,998.40-997,487,997.60-276,685,774.40

Finding the Fourth Proportional to 664,991,998.40, 997,487,997.60 and 276,685,774.40

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Solution

The fourth proportional to 664,991,998.40, 997,487,997.60 and 276,685,774.40 is: 415,028,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,991,998.40 : 997,487,997.60 = 276,685,774.40 : x
  2. Step 2: Convert to fraction form
    664,991,998.40/997,487,997.60 = 276,685,774.40/x
  3. Step 3: Cross multiply
    664,991,998.40x = 997,487,997.60 × 276,685,774.40
  4. Step 4: Simplify right side
    664,991,998.40x = 275,990,739,070,661,312
  5. Step 5: Solve for x
    x = 275,990,739,070,661,312/664,991,998.40
  6. Step 6: Final answer
    x = 415,028,661.60

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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.