Home / 664,439,231.60-996,658,847.40-319,309,636.40

Finding the Fourth Proportional to 664,439,231.60, 996,658,847.40 and 319,309,636.40

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Solution

The fourth proportional to 664,439,231.60, 996,658,847.40 and 319,309,636.40 is: 478,964,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,439,231.60 : 996,658,847.40 = 319,309,636.40 : x
  2. Step 2: Convert to fraction form
    664,439,231.60/996,658,847.40 = 319,309,636.40/x
  3. Step 3: Cross multiply
    664,439,231.60x = 996,658,847.40 × 319,309,636.40
  4. Step 4: Simplify right side
    664,439,231.60x = 318,242,774,178,137,024
  5. Step 5: Solve for x
    x = 318,242,774,178,137,024/664,439,231.60
  6. Step 6: Final answer
    x = 478,964,454.60

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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.