Home / 207,603,400.80-311,405,101.20-121,297,382.40

Finding the Fourth Proportional to 207,603,400.80, 311,405,101.20 and 121,297,382.40

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Solution

The fourth proportional to 207,603,400.80, 311,405,101.20 and 121,297,382.40 is: 181,946,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,603,400.80 : 311,405,101.20 = 121,297,382.40 : x
  2. Step 2: Convert to fraction form
    207,603,400.80/311,405,101.20 = 121,297,382.40/x
  3. Step 3: Cross multiply
    207,603,400.80x = 311,405,101.20 × 121,297,382.40
  4. Step 4: Simplify right side
    207,603,400.80x = 37,772,623,641,567,096
  5. Step 5: Solve for x
    x = 37,772,623,641,567,096/207,603,400.80
  6. Step 6: Final answer
    x = 181,946,073.60

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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.