Home / 137,603,441.88-189,892,780.64-75,723,780.37

Finding the Fourth Proportional to 137,603,441.88, 189,892,780.64 and 75,723,780.37

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Solution

The fourth proportional to 137,603,441.88, 189,892,780.64 and 75,723,780.37 is: 104,498,833.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,603,441.88 : 189,892,780.64 = 75,723,780.37 : x
  2. Step 2: Convert to fraction form
    137,603,441.88/189,892,780.64 = 75,723,780.37/x
  3. Step 3: Cross multiply
    137,603,441.88x = 189,892,780.64 × 75,723,780.37
  4. Step 4: Simplify right side
    137,603,441.88x = 14,379,399,215,031,948
  5. Step 5: Solve for x
    x = 14,379,399,215,031,948/137,603,441.88
  6. Step 6: Final answer
    x = 104,498,833.89

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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.