Finding the Fourth Proportional to 76,728,590.70, 105,884,216.19 and 41,920,531.98
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Solution
The fourth proportional to 76,728,590.70, 105,884,216.19 and 41,920,531.98 is: 57,849,657.22
Step by Step Solution
- Step 1: Write the proportion equation
76,728,590.70 : 105,884,216.19 = 41,920,531.98 : x - Step 2: Convert to fraction form
76,728,590.70/105,884,216.19 = 41,920,531.98/x - Step 3: Cross multiply
76,728,590.70x = 105,884,216.19 × 41,920,531.98 - Step 4: Simplify right side
76,728,590.70x = 4,438,722,670,970,128.50 - Step 5: Solve for x
x = 4,438,722,670,970,128.50/76,728,590.70 - Step 6: Final answer
x = 57,849,657.22
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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.