Home / 511,431,998.40-767,147,997.60-224,217,662.40

Finding the Fourth Proportional to 511,431,998.40, 767,147,997.60 and 224,217,662.40

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Solution

The fourth proportional to 511,431,998.40, 767,147,997.60 and 224,217,662.40 is: 336,326,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,431,998.40 : 767,147,997.60 = 224,217,662.40 : x
  2. Step 2: Convert to fraction form
    511,431,998.40/767,147,997.60 = 224,217,662.40/x
  3. Step 3: Cross multiply
    511,431,998.40x = 767,147,997.60 × 224,217,662.40
  4. Step 4: Simplify right side
    511,431,998.40x = 172,008,130,736,712,832
  5. Step 5: Solve for x
    x = 172,008,130,736,712,832/511,431,998.40
  6. Step 6: Final answer
    x = 336,326,493.60

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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.