Finding the Fourth Proportional to 318,471,079.25, 439,475,953.01 and 177,349,578.90
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Solution
The fourth proportional to 318,471,079.25, 439,475,953.01 and 177,349,578.90 is: 244,734,546.66
Step by Step Solution
- Step 1: Write the proportion equation
318,471,079.25 : 439,475,953.01 = 177,349,578.90 : x - Step 2: Convert to fraction form
318,471,079.25/439,475,953.01 = 177,349,578.90/x - Step 3: Cross multiply
318,471,079.25x = 439,475,953.01 × 177,349,578.90 - Step 4: Simplify right side
318,471,079.25x = 77,940,875,202,112,944 - Step 5: Solve for x
x = 77,940,875,202,112,944/318,471,079.25 - Step 6: Final answer
x = 244,734,546.66
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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.