Finding the Fourth Proportional to 5,731,718.09, 7,909,770.69 and 3,153,343.50
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Solution
The fourth proportional to 5,731,718.09, 7,909,770.69 and 3,153,343.50 is: 4,351,613.88
Step by Step Solution
- Step 1: Write the proportion equation
5,731,718.09 : 7,909,770.69 = 3,153,343.50 : x - Step 2: Convert to fraction form
5,731,718.09/7,909,770.69 = 3,153,343.50/x - Step 3: Cross multiply
5,731,718.09x = 7,909,770.69 × 3,153,343.50 - Step 4: Simplify right side
5,731,718.09x = 24,942,223,991,802.02 - Step 5: Solve for x
x = 24,942,223,991,802.02/5,731,718.09 - Step 6: Final answer
x = 4,351,613.88
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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.