Home / 209,990,291.74-315,000,571.41-80,597,901.83

Finding the Fourth Proportional to 209,990,291.74, 315,000,571.41 and 80,597,901.83

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Solution

The fourth proportional to 209,990,291.74, 315,000,571.41 and 80,597,901.83 is: 120,902,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,990,291.74 : 315,000,571.41 = 80,597,901.83 : x
  2. Step 2: Convert to fraction form
    209,990,291.74/315,000,571.41 = 80,597,901.83/x
  3. Step 3: Cross multiply
    209,990,291.74x = 315,000,571.41 × 80,597,901.83
  4. Step 4: Simplify right side
    209,990,291.74x = 25,388,385,129,322,084
  5. Step 5: Solve for x
    x = 25,388,385,129,322,084/209,990,291.74
  6. Step 6: Final answer
    x = 120,902,661.35

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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.