Home / 659,809,300.20-989,462,007.90-199,594,516.20

Finding the Fourth Proportional to 659,809,300.20, 989,462,007.90 and 199,594,516.20

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Solution

The fourth proportional to 659,809,300.20, 989,462,007.90 and 199,594,516.20 is: 299,315,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,809,300.20 : 989,462,007.90 = 199,594,516.20 : x
  2. Step 2: Convert to fraction form
    659,809,300.20/989,462,007.90 = 199,594,516.20/x
  3. Step 3: Cross multiply
    659,809,300.20x = 989,462,007.90 × 199,594,516.20
  4. Step 4: Simplify right side
    659,809,300.20x = 197,491,190,765,081,056
  5. Step 5: Solve for x
    x = 197,491,190,765,081,056/659,809,300.20
  6. Step 6: Final answer
    x = 299,315,560.88

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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.