Finding the Fourth Proportional to 72,612,407.26, 100,208,674.68 and 40,832,578.77
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Solution
The fourth proportional to 72,612,407.26, 100,208,674.68 and 40,832,578.77 is: 56,350,956.49
Step by Step Solution
- Step 1: Write the proportion equation
72,612,407.26 : 100,208,674.68 = 40,832,578.77 : x - Step 2: Convert to fraction form
72,612,407.26/100,208,674.68 = 40,832,578.77/x - Step 3: Cross multiply
72,612,407.26x = 100,208,674.68 × 40,832,578.77 - Step 4: Simplify right side
72,612,407.26x = 4,091,778,602,308,405 - Step 5: Solve for x
x = 4,091,778,602,308,405/72,612,407.26 - Step 6: Final answer
x = 56,350,956.49
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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.