Home / 21,056,558.58-31,584,834.27-11,479,990.50

Finding the Fourth Proportional to 21,056,558.58, 31,584,834.27 and 11,479,990.50

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Solution

The fourth proportional to 21,056,558.58, 31,584,834.27 and 11,479,990.50 is: 17,219,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056,558.58 : 31,584,834.27 = 11,479,990.50 : x
  2. Step 2: Convert to fraction form
    21,056,558.58/31,584,834.27 = 11,479,990.50/x
  3. Step 3: Cross multiply
    21,056,558.58x = 31,584,834.27 × 11,479,990.50
  4. Step 4: Simplify right side
    21,056,558.58x = 362,593,597,363,674.44
  5. Step 5: Solve for x
    x = 362,593,597,363,674.44/21,056,558.58
  6. Step 6: Final answer
    x = 17,219,983.79

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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.