Finding the Fourth Proportional to 78,684,609.88, 117,955,461.94 and 27,538,728.12
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Solution
The fourth proportional to 78,684,609.88, 117,955,461.94 and 27,538,728.12 is: 41,283,084.48
Step by Step Solution
- Step 1: Write the proportion equation
78,684,609.88 : 117,955,461.94 = 27,538,728.12 : x - Step 2: Convert to fraction form
78,684,609.88/117,955,461.94 = 27,538,728.12/x - Step 3: Cross multiply
78,684,609.88x = 117,955,461.94 × 27,538,728.12 - Step 4: Simplify right side
78,684,609.88x = 3,248,343,396,634,668 - Step 5: Solve for x
x = 3,248,343,396,634,668/78,684,609.88 - Step 6: Final answer
x = 41,283,084.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.