Home / 76,999,249.60-115,498,874.40-31,593,630.40

Finding the Fourth Proportional to 76,999,249.60, 115,498,874.40 and 31,593,630.40

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Solution

The fourth proportional to 76,999,249.60, 115,498,874.40 and 31,593,630.40 is: 47,390,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,999,249.60 : 115,498,874.40 = 31,593,630.40 : x
  2. Step 2: Convert to fraction form
    76,999,249.60/115,498,874.40 = 31,593,630.40/x
  3. Step 3: Cross multiply
    76,999,249.60x = 115,498,874.40 × 31,593,630.40
  4. Step 4: Simplify right side
    76,999,249.60x = 3,649,028,749,409,622
  5. Step 5: Solve for x
    x = 3,649,028,749,409,622/76,999,249.60
  6. Step 6: Final answer
    x = 47,390,445.60

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1.5x scale

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.