Finding the Fourth Proportional to 22,328,543.12, 30,816,722.04 and 13,631,756.99
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Solution
The fourth proportional to 22,328,543.12, 30,816,722.04 and 13,631,756.99 is: 18,813,859.19
Step by Step Solution
- Step 1: Write the proportion equation
22,328,543.12 : 30,816,722.04 = 13,631,756.99 : x - Step 2: Convert to fraction form
22,328,543.12/30,816,722.04 = 13,631,756.99/x - Step 3: Cross multiply
22,328,543.12x = 30,816,722.04 × 13,631,756.99 - Step 4: Simplify right side
22,328,543.12x = 420,086,066,077,657.06 - Step 5: Solve for x
x = 420,086,066,077,657.06/22,328,543.12 - Step 6: Final answer
x = 18,813,859.19
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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.