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Finding the Fourth Proportional to 798,529,813.20, 1,197,794,719.80 and 389,375,355.60

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Solution

The fourth proportional to 798,529,813.20, 1,197,794,719.80 and 389,375,355.60 is: 584,063,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,529,813.20 : 1,197,794,719.80 = 389,375,355.60 : x
  2. Step 2: Convert to fraction form
    798,529,813.20/1,197,794,719.80 = 389,375,355.60/x
  3. Step 3: Cross multiply
    798,529,813.20x = 1,197,794,719.80 × 389,375,355.60
  4. Step 4: Simplify right side
    798,529,813.20x = 466,391,744,957,927,360
  5. Step 5: Solve for x
    x = 466,391,744,957,927,360/798,529,813.20
  6. Step 6: Final answer
    x = 584,063,033.40

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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.