Home / 207,603,478.80-311,405,218.20-121,297,460.40

Finding the Fourth Proportional to 207,603,478.80, 311,405,218.20 and 121,297,460.40

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Solution

The fourth proportional to 207,603,478.80, 311,405,218.20 and 121,297,460.40 is: 181,946,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,603,478.80 : 311,405,218.20 = 121,297,460.40 : x
  2. Step 2: Convert to fraction form
    207,603,478.80/311,405,218.20 = 121,297,460.40/x
  3. Step 3: Cross multiply
    207,603,478.80x = 311,405,218.20 × 121,297,460.40
  4. Step 4: Simplify right side
    207,603,478.80x = 37,772,662,122,967,856
  5. Step 5: Solve for x
    x = 37,772,662,122,967,856/207,603,478.80
  6. Step 6: Final answer
    x = 181,946,190.60

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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.