Home / 21,152,145.75-29,198,889.90-14,285,928.03

Finding the Fourth Proportional to 21,152,145.75, 29,198,889.90 and 14,285,928.03

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Solution

The fourth proportional to 21,152,145.75, 29,198,889.90 and 14,285,928.03 is: 19,720,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152,145.75 : 29,198,889.90 = 14,285,928.03 : x
  2. Step 2: Convert to fraction form
    21,152,145.75/29,198,889.90 = 14,285,928.03/x
  3. Step 3: Cross multiply
    21,152,145.75x = 29,198,889.90 × 14,285,928.03
  4. Step 4: Simplify right side
    21,152,145.75x = 417,133,239,667,293.88
  5. Step 5: Solve for x
    x = 417,133,239,667,293.88/21,152,145.75
  6. Step 6: Final answer
    x = 19,720,611.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.