Finding the Fourth Proportional to 15,294,198.91, 21,106,551.45 and 8,324,539.62
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Solution
The fourth proportional to 15,294,198.91, 21,106,551.45 and 8,324,539.62 is: 11,488,167.82
Step by Step Solution
- Step 1: Write the proportion equation
15,294,198.91 : 21,106,551.45 = 8,324,539.62 : x - Step 2: Convert to fraction form
15,294,198.91/21,106,551.45 = 8,324,539.62/x - Step 3: Cross multiply
15,294,198.91x = 21,106,551.45 × 8,324,539.62 - Step 4: Simplify right side
15,294,198.91x = 175,702,323,739,984.91 - Step 5: Solve for x
x = 175,702,323,739,984.91/15,294,198.91 - Step 6: Final answer
x = 11,488,167.82
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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.