Home / 207,603,515.80-311,405,273.70-121,297,497.40

Finding the Fourth Proportional to 207,603,515.80, 311,405,273.70 and 121,297,497.40

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Solution

The fourth proportional to 207,603,515.80, 311,405,273.70 and 121,297,497.40 is: 181,946,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,603,515.80 : 311,405,273.70 = 121,297,497.40 : x
  2. Step 2: Convert to fraction form
    207,603,515.80/311,405,273.70 = 121,297,497.40/x
  3. Step 3: Cross multiply
    207,603,515.80x = 311,405,273.70 × 121,297,497.40
  4. Step 4: Simplify right side
    207,603,515.80x = 37,772,680,376,972,040
  5. Step 5: Solve for x
    x = 37,772,680,376,972,040/207,603,515.80
  6. Step 6: Final answer
    x = 181,946,246.10

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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.