Home / 388,085,496,020.20-582,128,244,030.30-189,236,429,626.60

Finding the Fourth Proportional to 388,085,496,020.20, 582,128,244,030.30 and 189,236,429,626.60

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Solution

The fourth proportional to 388,085,496,020.20, 582,128,244,030.30 and 189,236,429,626.60 is: 283,854,644,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,085,496,020.20 : 582,128,244,030.30 = 189,236,429,626.60 : x
  2. Step 2: Convert to fraction form
    388,085,496,020.20/582,128,244,030.30 = 189,236,429,626.60/x
  3. Step 3: Cross multiply
    388,085,496,020.20x = 582,128,244,030.30 × 189,236,429,626.60
  4. Step 4: Simplify right side
    388,085,496,020.20x = 110,159,870,485,096,113,897,472
  5. Step 5: Solve for x
    x = 110,159,870,485,096,113,897,472/388,085,496,020.20
  6. Step 6: Final answer
    x = 283,854,644,439.90

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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.