Home / 388,097,872.80-582,146,809.20-380,445,122.40

Finding the Fourth Proportional to 388,097,872.80, 582,146,809.20 and 380,445,122.40

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Solution

The fourth proportional to 388,097,872.80, 582,146,809.20 and 380,445,122.40 is: 570,667,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,097,872.80 : 582,146,809.20 = 380,445,122.40 : x
  2. Step 2: Convert to fraction form
    388,097,872.80/582,146,809.20 = 380,445,122.40/x
  3. Step 3: Cross multiply
    388,097,872.80x = 582,146,809.20 × 380,445,122.40
  4. Step 4: Simplify right side
    388,097,872.80x = 221,474,914,080,863,456
  5. Step 5: Solve for x
    x = 221,474,914,080,863,456/388,097,872.80
  6. Step 6: Final answer
    x = 570,667,683.60

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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.