Home / 659,628,704.10-989,555,030.55-199,563,219.30

Finding the Fourth Proportional to 659,628,704.10, 989,555,030.55 and 199,563,219.30

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Solution

The fourth proportional to 659,628,704.10, 989,555,030.55 and 199,563,219.30 is: 299,378,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,628,704.10 : 989,555,030.55 = 199,563,219.30 : x
  2. Step 2: Convert to fraction form
    659,628,704.10/989,555,030.55 = 199,563,219.30/x
  3. Step 3: Cross multiply
    659,628,704.10x = 989,555,030.55 × 199,563,219.30
  4. Step 4: Simplify right side
    659,628,704.10x = 197,478,787,571,067,840
  5. Step 5: Solve for x
    x = 197,478,787,571,067,840/659,628,704.10
  6. Step 6: Final answer
    x = 299,378,705.54

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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.