Finding the Fourth Proportional to 100,927,152.26, 139,279,531.15 and 54,517,426.68
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Solution
The fourth proportional to 100,927,152.26, 139,279,531.15 and 54,517,426.68 is: 75,234,081.79
Step by Step Solution
- Step 1: Write the proportion equation
100,927,152.26 : 139,279,531.15 = 54,517,426.68 : x - Step 2: Convert to fraction form
100,927,152.26/139,279,531.15 = 54,517,426.68/x - Step 3: Cross multiply
100,927,152.26x = 139,279,531.15 × 54,517,426.68 - Step 4: Simplify right side
100,927,152.26x = 7,593,161,628,085,347 - Step 5: Solve for x
x = 7,593,161,628,085,347/100,927,152.26 - Step 6: Final answer
x = 75,234,081.79
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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.