Finding the Fourth Proportional to 12,219,610.59, 18,329,415.21 and 3,121,727.99
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Solution
The fourth proportional to 12,219,610.59, 18,329,415.21 and 3,121,727.99 is: 4,682,591.81
Step by Step Solution
- Step 1: Write the proportion equation
12,219,610.59 : 18,329,415.21 = 3,121,727.99 : x - Step 2: Convert to fraction form
12,219,610.59/18,329,415.21 = 3,121,727.99/x - Step 3: Cross multiply
12,219,610.59x = 18,329,415.21 × 3,121,727.99 - Step 4: Simplify right side
12,219,610.59x = 57,219,448,409,741.65 - Step 5: Solve for x
x = 57,219,448,409,741.65/12,219,610.59 - Step 6: Final answer
x = 4,682,591.81
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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.