Home / 12,889,558.93-17,782,557-7,379,989.27

Finding the Fourth Proportional to 12,889,558.93, 17,782,557 and 7,379,989.27

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Solution

The fourth proportional to 12,889,558.93, 17,782,557 and 7,379,989.27 is: 10,181,502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,558.93 : 17,782,557 = 7,379,989.27 : x
  2. Step 2: Convert to fraction form
    12,889,558.93/17,782,557 = 7,379,989.27/x
  3. Step 3: Cross multiply
    12,889,558.93x = 17,782,557 × 7,379,989.27
  4. Step 4: Simplify right side
    12,889,558.93x = 131,235,079,853,163.38
  5. Step 5: Solve for x
    x = 131,235,079,853,163.38/12,889,558.93
  6. Step 6: Final answer
    x = 10,181,502.76

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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.