Finding the Fourth Proportional to 19,853,828.20, 27,398,947.98 and 11,033,651.08
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Solution
The fourth proportional to 19,853,828.20, 27,398,947.98 and 11,033,651.08 is: 15,226,808.10
Step by Step Solution
- Step 1: Write the proportion equation
19,853,828.20 : 27,398,947.98 = 11,033,651.08 : x - Step 2: Convert to fraction form
19,853,828.20/27,398,947.98 = 11,033,651.08/x - Step 3: Cross multiply
19,853,828.20x = 27,398,947.98 × 11,033,651.08 - Step 4: Simplify right side
19,853,828.20x = 302,310,431,970,390.81 - Step 5: Solve for x
x = 302,310,431,970,390.81/19,853,828.20 - Step 6: Final answer
x = 15,226,808.10
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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.