Finding the Fourth Proportional to 13,411,612.84, 20,120,418.84 and 4,891,949.32
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Solution
The fourth proportional to 13,411,612.84, 20,120,418.84 and 4,891,949.32 is: 7,339,018.09
Step by Step Solution
- Step 1: Write the proportion equation
13,411,612.84 : 20,120,418.84 = 4,891,949.32 : x - Step 2: Convert to fraction form
13,411,612.84/20,120,418.84 = 4,891,949.32/x - Step 3: Cross multiply
13,411,612.84x = 20,120,418.84 × 4,891,949.32 - Step 4: Simplify right side
13,411,612.84x = 98,428,069,262,453.19 - Step 5: Solve for x
x = 98,428,069,262,453.19/13,411,612.84 - Step 6: Final answer
x = 7,339,018.09
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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.