Finding the Fourth Proportional to 21,482,624.01, 29,646,648.09 and 11,693,699.49
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Solution
The fourth proportional to 21,482,624.01, 29,646,648.09 and 11,693,699.49 is: 16,137,646.57
Step by Step Solution
- Step 1: Write the proportion equation
21,482,624.01 : 29,646,648.09 = 11,693,699.49 : x - Step 2: Convert to fraction form
21,482,624.01/29,646,648.09 = 11,693,699.49/x - Step 3: Cross multiply
21,482,624.01x = 29,646,648.09 × 11,693,699.49 - Step 4: Simplify right side
21,482,624.01x = 346,678,993,650,242.50 - Step 5: Solve for x
x = 346,678,993,650,242.50/21,482,624.01 - Step 6: Final answer
x = 16,137,646.57
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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.