Finding the Fourth Proportional to 20,264,855.14, 27,965,290.26 and 10,972,265.32
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Solution
The fourth proportional to 20,264,855.14, 27,965,290.26 and 10,972,265.32 is: 15,141,612.53
Step by Step Solution
- Step 1: Write the proportion equation
20,264,855.14 : 27,965,290.26 = 10,972,265.32 : x - Step 2: Convert to fraction form
20,264,855.14/27,965,290.26 = 10,972,265.32/x - Step 3: Cross multiply
20,264,855.14x = 27,965,290.26 × 10,972,265.32 - Step 4: Simplify right side
20,264,855.14x = 306,842,584,483,531.81 - Step 5: Solve for x
x = 306,842,584,483,531.81/20,264,855.14 - Step 6: Final answer
x = 15,141,612.53
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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.