Home / 664,306,906.10-996,460,359.15-387,674,150.90

Finding the Fourth Proportional to 664,306,906.10, 996,460,359.15 and 387,674,150.90

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Solution

The fourth proportional to 664,306,906.10, 996,460,359.15 and 387,674,150.90 is: 581,511,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306,906.10 : 996,460,359.15 = 387,674,150.90 : x
  2. Step 2: Convert to fraction form
    664,306,906.10/996,460,359.15 = 387,674,150.90/x
  3. Step 3: Cross multiply
    664,306,906.10x = 996,460,359.15 × 387,674,150.90
  4. Step 4: Simplify right side
    664,306,906.10x = 386,301,923,638,985,280
  5. Step 5: Solve for x
    x = 386,301,923,638,985,280/664,306,906.10
  6. Step 6: Final answer
    x = 581,511,226.35

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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.