Finding the Fourth Proportional to 66,308,685.94, 91,512,175.82 and 38,806,636.06
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Solution
The fourth proportional to 66,308,685.94, 91,512,175.82 and 38,806,636.06 is: 53,556,779.96
Step by Step Solution
- Step 1: Write the proportion equation
66,308,685.94 : 91,512,175.82 = 38,806,636.06 : x - Step 2: Convert to fraction form
66,308,685.94/91,512,175.82 = 38,806,636.06/x - Step 3: Cross multiply
66,308,685.94x = 91,512,175.82 × 38,806,636.06 - Step 4: Simplify right side
66,308,685.94x = 3,551,279,702,105,472 - Step 5: Solve for x
x = 3,551,279,702,105,472/66,308,685.94 - Step 6: Final answer
x = 53,556,779.96
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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.