Home / 531,550,015.20-797,325,022.80-388,222,783.20

Finding the Fourth Proportional to 531,550,015.20, 797,325,022.80 and 388,222,783.20

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Solution

The fourth proportional to 531,550,015.20, 797,325,022.80 and 388,222,783.20 is: 582,334,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,550,015.20 : 797,325,022.80 = 388,222,783.20 : x
  2. Step 2: Convert to fraction form
    531,550,015.20/797,325,022.80 = 388,222,783.20/x
  3. Step 3: Cross multiply
    531,550,015.20x = 797,325,022.80 × 388,222,783.20
  4. Step 4: Simplify right side
    531,550,015.20x = 309,539,739,466,419,456
  5. Step 5: Solve for x
    x = 309,539,739,466,419,456/531,550,015.20
  6. Step 6: Final answer
    x = 582,334,174.80

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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.