Home / 480,449,020.80-720,673,531.20-400,095,141.60

Finding the Fourth Proportional to 480,449,020.80, 720,673,531.20 and 400,095,141.60

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Solution

The fourth proportional to 480,449,020.80, 720,673,531.20 and 400,095,141.60 is: 600,142,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,449,020.80 : 720,673,531.20 = 400,095,141.60 : x
  2. Step 2: Convert to fraction form
    480,449,020.80/720,673,531.20 = 400,095,141.60/x
  3. Step 3: Cross multiply
    480,449,020.80x = 720,673,531.20 × 400,095,141.60
  4. Step 4: Simplify right side
    480,449,020.80x = 288,337,978,512,836,032
  5. Step 5: Solve for x
    x = 288,337,978,512,836,032/480,449,020.80
  6. Step 6: Final answer
    x = 600,142,712.40

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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.