Home / 20,776,709.11-31,163,585.58-6,398,277.61

Finding the Fourth Proportional to 20,776,709.11, 31,163,585.58 and 6,398,277.61

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Solution

The fourth proportional to 20,776,709.11, 31,163,585.58 and 6,398,277.61 is: 9,596,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,709.11 : 31,163,585.58 = 6,398,277.61 : x
  2. Step 2: Convert to fraction form
    20,776,709.11/31,163,585.58 = 6,398,277.61/x
  3. Step 3: Cross multiply
    20,776,709.11x = 31,163,585.58 × 6,398,277.61
  4. Step 4: Simplify right side
    20,776,709.11x = 199,393,271,863,832.88
  5. Step 5: Solve for x
    x = 199,393,271,863,832.88/20,776,709.11
  6. Step 6: Final answer
    x = 9,596,961.23

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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.