Home / 18,728,611.52-28,092,953.41-7,219,498.56

Finding the Fourth Proportional to 18,728,611.52, 28,092,953.41 and 7,219,498.56

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Solution

The fourth proportional to 18,728,611.52, 28,092,953.41 and 7,219,498.56 is: 10,829,261.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,611.52 : 28,092,953.41 = 7,219,498.56 : x
  2. Step 2: Convert to fraction form
    18,728,611.52/28,092,953.41 = 7,219,498.56/x
  3. Step 3: Cross multiply
    18,728,611.52x = 28,092,953.41 × 7,219,498.56
  4. Step 4: Simplify right side
    18,728,611.52x = 202,817,036,689,642.09
  5. Step 5: Solve for x
    x = 202,817,036,689,642.09/18,728,611.52
  6. Step 6: Final answer
    x = 10,829,261.77

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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.