Home / 76,463,998.80-114,695,998.20-68,103,243.60

Finding the Fourth Proportional to 76,463,998.80, 114,695,998.20 and 68,103,243.60

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Solution

The fourth proportional to 76,463,998.80, 114,695,998.20 and 68,103,243.60 is: 102,154,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,463,998.80 : 114,695,998.20 = 68,103,243.60 : x
  2. Step 2: Convert to fraction form
    76,463,998.80/114,695,998.20 = 68,103,243.60/x
  3. Step 3: Cross multiply
    76,463,998.80x = 114,695,998.20 × 68,103,243.60
  4. Step 4: Simplify right side
    76,463,998.80x = 7,811,169,505,359,761
  5. Step 5: Solve for x
    x = 7,811,169,505,359,761/76,463,998.80
  6. Step 6: Final answer
    x = 102,154,865.40

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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.