Home / 12,738,872.10-19,089,412.46-9,356,545.38

Finding the Fourth Proportional to 12,738,872.10, 19,089,412.46 and 9,356,545.38

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Solution

The fourth proportional to 12,738,872.10, 19,089,412.46 and 9,356,545.38 is: 14,020,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,872.10 : 19,089,412.46 = 9,356,545.38 : x
  2. Step 2: Convert to fraction form
    12,738,872.10/19,089,412.46 = 9,356,545.38/x
  3. Step 3: Cross multiply
    12,738,872.10x = 19,089,412.46 × 9,356,545.38
  4. Step 4: Simplify right side
    12,738,872.10x = 178,610,953,959,527.47
  5. Step 5: Solve for x
    x = 178,610,953,959,527.47/12,738,872.10
  6. Step 6: Final answer
    x = 14,020,939.42

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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.