Home / 726,055,992.72-1,089,608,614.83-289,104,858.06

Finding the Fourth Proportional to 726,055,992.72, 1,089,608,614.83 and 289,104,858.06

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Solution

The fourth proportional to 726,055,992.72, 1,089,608,614.83 and 289,104,858.06 is: 433,866,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,055,992.72 : 1,089,608,614.83 = 289,104,858.06 : x
  2. Step 2: Convert to fraction form
    726,055,992.72/1,089,608,614.83 = 289,104,858.06/x
  3. Step 3: Cross multiply
    726,055,992.72x = 1,089,608,614.83 × 289,104,858.06
  4. Step 4: Simplify right side
    726,055,992.72x = 315,011,143,931,380,352
  5. Step 5: Solve for x
    x = 315,011,143,931,380,352/726,055,992.72
  6. Step 6: Final answer
    x = 433,866,185.38

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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.