Home / 516,216,004.80-774,324,007.20-399,314,731.20

Finding the Fourth Proportional to 516,216,004.80, 774,324,007.20 and 399,314,731.20

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Solution

The fourth proportional to 516,216,004.80, 774,324,007.20 and 399,314,731.20 is: 598,972,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,216,004.80 : 774,324,007.20 = 399,314,731.20 : x
  2. Step 2: Convert to fraction form
    516,216,004.80/774,324,007.20 = 399,314,731.20/x
  3. Step 3: Cross multiply
    516,216,004.80x = 774,324,007.20 × 399,314,731.20
  4. Step 4: Simplify right side
    516,216,004.80x = 309,198,982,796,774,848
  5. Step 5: Solve for x
    x = 309,198,982,796,774,848/516,216,004.80
  6. Step 6: Final answer
    x = 598,972,096.80

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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.