Home / 140,539,573.64-193,900,401.78-78,650,078.60

Finding the Fourth Proportional to 140,539,573.64, 193,900,401.78 and 78,650,078.60

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Solution

The fourth proportional to 140,539,573.64, 193,900,401.78 and 78,650,078.60 is: 108,512,367.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,539,573.64 : 193,900,401.78 = 78,650,078.60 : x
  2. Step 2: Convert to fraction form
    140,539,573.64/193,900,401.78 = 78,650,078.60/x
  3. Step 3: Cross multiply
    140,539,573.64x = 193,900,401.78 × 78,650,078.60
  4. Step 4: Simplify right side
    140,539,573.64x = 15,250,281,840,568,578
  5. Step 5: Solve for x
    x = 15,250,281,840,568,578/140,539,573.64
  6. Step 6: Final answer
    x = 108,512,367.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.