Finding the Fourth Proportional to 85,920,582.62, 118,270,939.11 and 74,888,162.30
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Solution
The fourth proportional to 85,920,582.62, 118,270,939.11 and 74,888,162.30 is: 103,084,651.12
Step by Step Solution
- Step 1: Write the proportion equation
85,920,582.62 : 118,270,939.11 = 74,888,162.30 : x - Step 2: Convert to fraction form
85,920,582.62/118,270,939.11 = 74,888,162.30/x - Step 3: Cross multiply
85,920,582.62x = 118,270,939.11 × 74,888,162.30 - Step 4: Simplify right side
85,920,582.62x = 8,857,093,283,443,097 - Step 5: Solve for x
x = 8,857,093,283,443,097/85,920,582.62 - Step 6: Final answer
x = 103,084,651.12
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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.