Home / 12,738,816.54-19,089,328.95-9,356,489.82

Finding the Fourth Proportional to 12,738,816.54, 19,089,328.95 and 9,356,489.82

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Solution

The fourth proportional to 12,738,816.54, 19,089,328.95 and 9,356,489.82 is: 14,020,855.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738,816.54 : 19,089,328.95 = 9,356,489.82 : x
  2. Step 2: Convert to fraction form
    12,738,816.54/19,089,328.95 = 9,356,489.82/x
  3. Step 3: Cross multiply
    12,738,816.54x = 19,089,328.95 × 9,356,489.82
  4. Step 4: Simplify right side
    12,738,816.54x = 178,609,111,991,306.28
  5. Step 5: Solve for x
    x = 178,609,111,991,306.28/12,738,816.54
  6. Step 6: Final answer
    x = 14,020,855.97

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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.