Home / 388,096,727.20-582,145,090.80-157,947,344.80

Finding the Fourth Proportional to 388,096,727.20, 582,145,090.80 and 157,947,344.80

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Solution

The fourth proportional to 388,096,727.20, 582,145,090.80 and 157,947,344.80 is: 236,921,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,096,727.20 : 582,145,090.80 = 157,947,344.80 : x
  2. Step 2: Convert to fraction form
    388,096,727.20/582,145,090.80 = 157,947,344.80/x
  3. Step 3: Cross multiply
    388,096,727.20x = 582,145,090.80 × 157,947,344.80
  4. Step 4: Simplify right side
    388,096,727.20x = 91,948,271,380,214,912
  5. Step 5: Solve for x
    x = 91,948,271,380,214,912/388,096,727.20
  6. Step 6: Final answer
    x = 236,921,017.20

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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.