Home / 388,462,892.40-582,694,338.60-194,971,129.20

Finding the Fourth Proportional to 388,462,892.40, 582,694,338.60 and 194,971,129.20

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Solution

The fourth proportional to 388,462,892.40, 582,694,338.60 and 194,971,129.20 is: 292,456,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,462,892.40 : 582,694,338.60 = 194,971,129.20 : x
  2. Step 2: Convert to fraction form
    388,462,892.40/582,694,338.60 = 194,971,129.20/x
  3. Step 3: Cross multiply
    388,462,892.40x = 582,694,338.60 × 194,971,129.20
  4. Step 4: Simplify right side
    388,462,892.40x = 113,608,573,175,289,152
  5. Step 5: Solve for x
    x = 113,608,573,175,289,152/388,462,892.40
  6. Step 6: Final answer
    x = 292,456,693.80

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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.