Finding the Fourth Proportional to 15,294,218.20, 21,106,577.99 and 8,324,558.86
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Solution
The fourth proportional to 15,294,218.20, 21,106,577.99 and 8,324,558.86 is: 11,488,194.33
Step by Step Solution
- Step 1: Write the proportion equation
15,294,218.20 : 21,106,577.99 = 8,324,558.86 : x - Step 2: Convert to fraction form
15,294,218.20/21,106,577.99 = 8,324,558.86/x - Step 3: Cross multiply
15,294,218.20x = 21,106,577.99 × 8,324,558.86 - Step 4: Simplify right side
15,294,218.20x = 175,702,950,810,935.50 - Step 5: Solve for x
x = 175,702,950,810,935.50/15,294,218.20 - Step 6: Final answer
x = 11,488,194.33
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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.