Home / 992,738,647.20-1,489,107,970.80-659,844,004.80

Finding the Fourth Proportional to 992,738,647.20, 1,489,107,970.80 and 659,844,004.80

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Solution

The fourth proportional to 992,738,647.20, 1,489,107,970.80 and 659,844,004.80 is: 989,766,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,738,647.20 : 1,489,107,970.80 = 659,844,004.80 : x
  2. Step 2: Convert to fraction form
    992,738,647.20/1,489,107,970.80 = 659,844,004.80/x
  3. Step 3: Cross multiply
    992,738,647.20x = 1,489,107,970.80 × 659,844,004.80
  4. Step 4: Simplify right side
    992,738,647.20x = 982,578,967,032,273,408
  5. Step 5: Solve for x
    x = 982,578,967,032,273,408/992,738,647.20
  6. Step 6: Final answer
    x = 989,766,007.20

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Double scale
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1.5x scale

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.