Home / 212,048,541.20-318,072,811.80-147,551,286.80

Finding the Fourth Proportional to 212,048,541.20, 318,072,811.80 and 147,551,286.80

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Solution

The fourth proportional to 212,048,541.20, 318,072,811.80 and 147,551,286.80 is: 221,326,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,048,541.20 : 318,072,811.80 = 147,551,286.80 : x
  2. Step 2: Convert to fraction form
    212,048,541.20/318,072,811.80 = 147,551,286.80/x
  3. Step 3: Cross multiply
    212,048,541.20x = 318,072,811.80 × 147,551,286.80
  4. Step 4: Simplify right side
    212,048,541.20x = 46,932,052,677,184,232
  5. Step 5: Solve for x
    x = 46,932,052,677,184,232/212,048,541.20
  6. Step 6: Final answer
    x = 221,326,930.20

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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.