Finding the Fourth Proportional to 18,377,941.70, 27,566,912.55 and 7,591,657.70
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Solution
The fourth proportional to 18,377,941.70, 27,566,912.55 and 7,591,657.70 is: 11,387,486.55
Step by Step Solution
- Step 1: Write the proportion equation
18,377,941.70 : 27,566,912.55 = 7,591,657.70 : x - Step 2: Convert to fraction form
18,377,941.70/27,566,912.55 = 7,591,657.70/x - Step 3: Cross multiply
18,377,941.70x = 27,566,912.55 × 7,591,657.70 - Step 4: Simplify right side
18,377,941.70x = 209,278,563,925,434.16 - Step 5: Solve for x
x = 209,278,563,925,434.16/18,377,941.70 - Step 6: Final answer
x = 11,387,486.55
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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.