Home / 76,905,664.40-115,358,496.60-71,066,406.80

Finding the Fourth Proportional to 76,905,664.40, 115,358,496.60 and 71,066,406.80

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Solution

The fourth proportional to 76,905,664.40, 115,358,496.60 and 71,066,406.80 is: 106,599,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,905,664.40 : 115,358,496.60 = 71,066,406.80 : x
  2. Step 2: Convert to fraction form
    76,905,664.40/115,358,496.60 = 71,066,406.80/x
  3. Step 3: Cross multiply
    76,905,664.40x = 115,358,496.60 × 71,066,406.80
  4. Step 4: Simplify right side
    76,905,664.40x = 8,198,113,847,212,016
  5. Step 5: Solve for x
    x = 8,198,113,847,212,016/76,905,664.40
  6. Step 6: Final answer
    x = 106,599,610.20

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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.