Finding the Fourth Proportional to 21,405,975.08, 29,540,264.68 and 11,616,419.32
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Solution
The fourth proportional to 21,405,975.08, 29,540,264.68 and 11,616,419.32 is: 16,030,669.01
Step by Step Solution
- Step 1: Write the proportion equation
21,405,975.08 : 29,540,264.68 = 11,616,419.32 : x - Step 2: Convert to fraction form
21,405,975.08/29,540,264.68 = 11,616,419.32/x - Step 3: Cross multiply
21,405,975.08x = 29,540,264.68 × 11,616,419.32 - Step 4: Simplify right side
21,405,975.08x = 343,152,101,346,665.62 - Step 5: Solve for x
x = 343,152,101,346,665.62/21,405,975.08 - Step 6: Final answer
x = 16,030,669.01
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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.