Home / 511,216,999.20-766,377,601.20-306,826,394.40

Finding the Fourth Proportional to 511,216,999.20, 766,377,601.20 and 306,826,394.40

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Solution

The fourth proportional to 511,216,999.20, 766,377,601.20 and 306,826,394.40 is: 459,970,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,216,999.20 : 766,377,601.20 = 306,826,394.40 : x
  2. Step 2: Convert to fraction form
    511,216,999.20/766,377,601.20 = 306,826,394.40/x
  3. Step 3: Cross multiply
    511,216,999.20x = 766,377,601.20 × 306,826,394.40
  4. Step 4: Simplify right side
    511,216,999.20x = 235,144,876,125,117,120
  5. Step 5: Solve for x
    x = 235,144,876,125,117,120/511,216,999.20
  6. Step 6: Final answer
    x = 459,970,768.76

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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.