Home / 410,867,959.22-615,916,145.53-138,047,932.34

Finding the Fourth Proportional to 410,867,959.22, 615,916,145.53 and 138,047,932.34

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Solution

The fourth proportional to 410,867,959.22, 615,916,145.53 and 138,047,932.34 is: 206,942,275.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,867,959.22 : 615,916,145.53 = 138,047,932.34 : x
  2. Step 2: Convert to fraction form
    410,867,959.22/615,916,145.53 = 138,047,932.34/x
  3. Step 3: Cross multiply
    410,867,959.22x = 615,916,145.53 × 138,047,932.34
  4. Step 4: Simplify right side
    410,867,959.22x = 85,025,950,385,239,024
  5. Step 5: Solve for x
    x = 85,025,950,385,239,024/410,867,959.22
  6. Step 6: Final answer
    x = 206,942,275.44

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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.