Home / 852,332,517.28-1,278,556,512.72-299,567,742.40

Finding the Fourth Proportional to 852,332,517.28, 1,278,556,512.72 and 299,567,742.40

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Solution

The fourth proportional to 852,332,517.28, 1,278,556,512.72 and 299,567,742.40 is: 449,371,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,332,517.28 : 1,278,556,512.72 = 299,567,742.40 : x
  2. Step 2: Convert to fraction form
    852,332,517.28/1,278,556,512.72 = 299,567,742.40/x
  3. Step 3: Cross multiply
    852,332,517.28x = 1,278,556,512.72 × 299,567,742.40
  4. Step 4: Simplify right side
    852,332,517.28x = 383,014,288,046,347,264
  5. Step 5: Solve for x
    x = 383,014,288,046,347,264/852,332,517.28
  6. Step 6: Final answer
    x = 449,371,906.25

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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.