Home / 77,171,828.32-115,669,682.52-31,084,197.76

Finding the Fourth Proportional to 77,171,828.32, 115,669,682.52 and 31,084,197.76

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Solution

The fourth proportional to 77,171,828.32, 115,669,682.52 and 31,084,197.76 is: 46,590,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171,828.32 : 115,669,682.52 = 31,084,197.76 : x
  2. Step 2: Convert to fraction form
    77,171,828.32/115,669,682.52 = 31,084,197.76/x
  3. Step 3: Cross multiply
    77,171,828.32x = 115,669,682.52 × 31,084,197.76
  4. Step 4: Simplify right side
    77,171,828.32x = 3,595,499,286,288,095
  5. Step 5: Solve for x
    x = 3,595,499,286,288,095/77,171,828.32
  6. Step 6: Final answer
    x = 46,590,826.79

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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.