Home / 410,867,957.22-615,916,142.53-138,047,930.34

Finding the Fourth Proportional to 410,867,957.22, 615,916,142.53 and 138,047,930.34

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Solution

The fourth proportional to 410,867,957.22, 615,916,142.53 and 138,047,930.34 is: 206,942,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,867,957.22 : 615,916,142.53 = 138,047,930.34 : x
  2. Step 2: Convert to fraction form
    410,867,957.22/615,916,142.53 = 138,047,930.34/x
  3. Step 3: Cross multiply
    410,867,957.22x = 615,916,142.53 × 138,047,930.34
  4. Step 4: Simplify right side
    410,867,957.22x = 85,025,948,736,608,160
  5. Step 5: Solve for x
    x = 85,025,948,736,608,160/410,867,957.22
  6. Step 6: Final answer
    x = 206,942,272.43

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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.