Home / 212,048,541.70-318,072,812.55-147,551,287.30

Finding the Fourth Proportional to 212,048,541.70, 318,072,812.55 and 147,551,287.30

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Solution

The fourth proportional to 212,048,541.70, 318,072,812.55 and 147,551,287.30 is: 221,326,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,048,541.70 : 318,072,812.55 = 147,551,287.30 : x
  2. Step 2: Convert to fraction form
    212,048,541.70/318,072,812.55 = 147,551,287.30/x
  3. Step 3: Cross multiply
    212,048,541.70x = 318,072,812.55 × 147,551,287.30
  4. Step 4: Simplify right side
    212,048,541.70x = 46,932,052,946,884,104
  5. Step 5: Solve for x
    x = 46,932,052,946,884,104/212,048,541.70
  6. Step 6: Final answer
    x = 221,326,930.95

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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.