Finding the Fourth Proportional to 220,765,979.35, 304,643,324.48 and 121,641,179.63
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Solution
The fourth proportional to 220,765,979.35, 304,643,324.48 and 121,641,179.63 is: 167,857,264.35
Step by Step Solution
- Step 1: Write the proportion equation
220,765,979.35 : 304,643,324.48 = 121,641,179.63 : x - Step 2: Convert to fraction form
220,765,979.35/304,643,324.48 = 121,641,179.63/x - Step 3: Cross multiply
220,765,979.35x = 304,643,324.48 × 121,641,179.63 - Step 4: Simplify right side
220,765,979.35x = 37,057,173,354,706,688 - Step 5: Solve for x
x = 37,057,173,354,706,688/220,765,979.35 - Step 6: Final answer
x = 167,857,264.35
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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.