Home / 492,276,817.98-679,551,183.99-306,729,507.24

Finding the Fourth Proportional to 492,276,817.98, 679,551,183.99 and 306,729,507.24

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Solution

The fourth proportional to 492,276,817.98, 679,551,183.99 and 306,729,507.24 is: 423,417,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276,817.98 : 679,551,183.99 = 306,729,507.24 : x
  2. Step 2: Convert to fraction form
    492,276,817.98/679,551,183.99 = 306,729,507.24/x
  3. Step 3: Cross multiply
    492,276,817.98x = 679,551,183.99 × 306,729,507.24
  4. Step 4: Simplify right side
    492,276,817.98x = 208,438,399,809,611,296
  5. Step 5: Solve for x
    x = 208,438,399,809,611,296/492,276,817.98
  6. Step 6: Final answer
    x = 423,417,053.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.