Home / 679,951,648.40-1,017,576,010.20-407,517,933.20

Finding the Fourth Proportional to 679,951,648.40, 1,017,576,010.20 and 407,517,933.20

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Solution

The fourth proportional to 679,951,648.40, 1,017,576,010.20 and 407,517,933.20 is: 609,867,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,951,648.40 : 1,017,576,010.20 = 407,517,933.20 : x
  2. Step 2: Convert to fraction form
    679,951,648.40/1,017,576,010.20 = 407,517,933.20/x
  3. Step 3: Cross multiply
    679,951,648.40x = 1,017,576,010.20 × 407,517,933.20
  4. Step 4: Simplify right side
    679,951,648.40x = 414,680,472,550,606,144
  5. Step 5: Solve for x
    x = 414,680,472,550,606,144/679,951,648.40
  6. Step 6: Final answer
    x = 609,867,589.15

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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.