Home / 388,460,982.80-582,691,474.20-346,134,659.60

Finding the Fourth Proportional to 388,460,982.80, 582,691,474.20 and 346,134,659.60

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Solution

The fourth proportional to 388,460,982.80, 582,691,474.20 and 346,134,659.60 is: 519,201,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,460,982.80 : 582,691,474.20 = 346,134,659.60 : x
  2. Step 2: Convert to fraction form
    388,460,982.80/582,691,474.20 = 346,134,659.60/x
  3. Step 3: Cross multiply
    388,460,982.80x = 582,691,474.20 × 346,134,659.60
  4. Step 4: Simplify right side
    388,460,982.80x = 201,689,715,074,039,200
  5. Step 5: Solve for x
    x = 201,689,715,074,039,200/388,460,982.80
  6. Step 6: Final answer
    x = 519,201,989.40

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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.