Finding the Fourth Proportional to 18,138,770.80, 27,237,647.40 and 13,125,266.80
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Solution
The fourth proportional to 18,138,770.80, 27,237,647.40 and 13,125,266.80 is: 19,709,240.12
Step by Step Solution
- Step 1: Write the proportion equation
18,138,770.80 : 27,237,647.40 = 13,125,266.80 : x - Step 2: Convert to fraction form
18,138,770.80/27,237,647.40 = 13,125,266.80/x - Step 3: Cross multiply
18,138,770.80x = 27,237,647.40 × 13,125,266.80 - Step 4: Simplify right side
18,138,770.80x = 357,501,389,129,326.31 - Step 5: Solve for x
x = 357,501,389,129,326.31/18,138,770.80 - Step 6: Final answer
x = 19,709,240.12
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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.