Home / 18,728,611.90-28,092,953.97-7,219,498.94

Finding the Fourth Proportional to 18,728,611.90, 28,092,953.97 and 7,219,498.94

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Solution

The fourth proportional to 18,728,611.90, 28,092,953.97 and 7,219,498.94 is: 10,829,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,611.90 : 28,092,953.97 = 7,219,498.94 : x
  2. Step 2: Convert to fraction form
    18,728,611.90/28,092,953.97 = 7,219,498.94/x
  3. Step 3: Cross multiply
    18,728,611.90x = 28,092,953.97 × 7,219,498.94
  4. Step 4: Simplify right side
    18,728,611.90x = 202,817,051,372,767.59
  5. Step 5: Solve for x
    x = 202,817,051,372,767.59/18,728,611.90
  6. Step 6: Final answer
    x = 10,829,262.33

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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.