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Finding the Fourth Proportional to 664,331,409.60, 996,497,114.40 and 615,958,468.80

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Solution

The fourth proportional to 664,331,409.60, 996,497,114.40 and 615,958,468.80 is: 923,937,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,331,409.60 : 996,497,114.40 = 615,958,468.80 : x
  2. Step 2: Convert to fraction form
    664,331,409.60/996,497,114.40 = 615,958,468.80/x
  3. Step 3: Cross multiply
    664,331,409.60x = 996,497,114.40 × 615,958,468.80
  4. Step 4: Simplify right side
    664,331,409.60x = 613,800,836,749,442,432
  5. Step 5: Solve for x
    x = 613,800,836,749,442,432/664,331,409.60
  6. Step 6: Final answer
    x = 923,937,703.20

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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.