Finding the Fourth Proportional to 15,493,986.39, 21,382,032.44 and 8,524,683.98
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Solution
The fourth proportional to 15,493,986.39, 21,382,032.44 and 8,524,683.98 is: 11,764,246.14
Step by Step Solution
- Step 1: Write the proportion equation
15,493,986.39 : 21,382,032.44 = 8,524,683.98 : x - Step 2: Convert to fraction form
15,493,986.39/21,382,032.44 = 8,524,683.98/x - Step 3: Cross multiply
15,493,986.39x = 21,382,032.44 × 8,524,683.98 - Step 4: Simplify right side
15,493,986.39x = 182,275,069,470,531.56 - Step 5: Solve for x
x = 182,275,069,470,531.56/15,493,986.39 - Step 6: Final answer
x = 11,764,246.14
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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.