Home / 410,867,958.22-615,916,144.03-138,047,931.34

Finding the Fourth Proportional to 410,867,958.22, 615,916,144.03 and 138,047,931.34

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Solution

The fourth proportional to 410,867,958.22, 615,916,144.03 and 138,047,931.34 is: 206,942,273.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,867,958.22 : 615,916,144.03 = 138,047,931.34 : x
  2. Step 2: Convert to fraction form
    410,867,958.22/615,916,144.03 = 138,047,931.34/x
  3. Step 3: Cross multiply
    410,867,958.22x = 615,916,144.03 × 138,047,931.34
  4. Step 4: Simplify right side
    410,867,958.22x = 85,025,949,562,250,992
  5. Step 5: Solve for x
    x = 85,025,949,562,250,992/410,867,958.22
  6. Step 6: Final answer
    x = 206,942,273.94

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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.