Home / 665,943,601.20-998,915,401.80-205,928,271.60

Finding the Fourth Proportional to 665,943,601.20, 998,915,401.80 and 205,928,271.60

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Solution

The fourth proportional to 665,943,601.20, 998,915,401.80 and 205,928,271.60 is: 308,892,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,943,601.20 : 998,915,401.80 = 205,928,271.60 : x
  2. Step 2: Convert to fraction form
    665,943,601.20/998,915,401.80 = 205,928,271.60/x
  3. Step 3: Cross multiply
    665,943,601.20x = 998,915,401.80 × 205,928,271.60
  4. Step 4: Simplify right side
    665,943,601.20x = 205,704,922,167,293,504
  5. Step 5: Solve for x
    x = 205,704,922,167,293,504/665,943,601.20
  6. Step 6: Final answer
    x = 308,892,407.40

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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.