Home / 561,903,250,279.78-775,405,721,608.38-304,980,631,312.60

Finding the Fourth Proportional to 561,903,250,279.78, 775,405,721,608.38 and 304,980,631,312.60

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Solution

The fourth proportional to 561,903,250,279.78, 775,405,721,608.38 and 304,980,631,312.60 is: 420,862,001,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,903,250,279.78 : 775,405,721,608.38 = 304,980,631,312.60 : x
  2. Step 2: Convert to fraction form
    561,903,250,279.78/775,405,721,608.38 = 304,980,631,312.60/x
  3. Step 3: Cross multiply
    561,903,250,279.78x = 775,405,721,608.38 × 304,980,631,312.60
  4. Step 4: Simplify right side
    561,903,250,279.78x = 236,483,726,499,525,867,601,920
  5. Step 5: Solve for x
    x = 236,483,726,499,525,867,601,920/561,903,250,279.78
  6. Step 6: Final answer
    x = 420,862,001,388.63

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.