Home / 12,738,872.36-19,089,412.82-9,356,545.64

Finding the Fourth Proportional to 12,738,872.36, 19,089,412.82 and 9,356,545.64

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Solution

The fourth proportional to 12,738,872.36, 19,089,412.82 and 9,356,545.64 is: 14,020,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,872.36 : 19,089,412.82 = 9,356,545.64 : x
  2. Step 2: Convert to fraction form
    12,738,872.36/19,089,412.82 = 9,356,545.64/x
  3. Step 3: Cross multiply
    12,738,872.36x = 19,089,412.82 × 9,356,545.64
  4. Step 4: Simplify right side
    12,738,872.36x = 178,610,962,291,131.12
  5. Step 5: Solve for x
    x = 178,610,962,291,131.12/12,738,872.36
  6. Step 6: Final answer
    x = 14,020,939.79

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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.