Home / 151,783,519.86-209,461,327.90-82,168,900.64

Finding the Fourth Proportional to 151,783,519.86, 209,461,327.90 and 82,168,900.64

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Solution

The fourth proportional to 151,783,519.86, 209,461,327.90 and 82,168,900.64 is: 113,393,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783,519.86 : 209,461,327.90 = 82,168,900.64 : x
  2. Step 2: Convert to fraction form
    151,783,519.86/209,461,327.90 = 82,168,900.64/x
  3. Step 3: Cross multiply
    151,783,519.86x = 209,461,327.90 × 82,168,900.64
  4. Step 4: Simplify right side
    151,783,519.86x = 17,211,207,040,137,560
  5. Step 5: Solve for x
    x = 17,211,207,040,137,560/151,783,519.86
  6. Step 6: Final answer
    x = 113,393,121.05

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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.