Home / 659,809,301.70-989,462,010.15-199,594,517.70

Finding the Fourth Proportional to 659,809,301.70, 989,462,010.15 and 199,594,517.70

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Solution

The fourth proportional to 659,809,301.70, 989,462,010.15 and 199,594,517.70 is: 299,315,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,809,301.70 : 989,462,010.15 = 199,594,517.70 : x
  2. Step 2: Convert to fraction form
    659,809,301.70/989,462,010.15 = 199,594,517.70/x
  3. Step 3: Cross multiply
    659,809,301.70x = 989,462,010.15 × 199,594,517.70
  4. Step 4: Simplify right side
    659,809,301.70x = 197,491,192,698,361,728
  5. Step 5: Solve for x
    x = 197,491,192,698,361,728/659,809,301.70
  6. Step 6: Final answer
    x = 299,315,563.13

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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.