Finding the Fourth Proportional to 5,731,651.22, 7,909,678.40 and 3,153,276.62
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Solution
The fourth proportional to 5,731,651.22, 7,909,678.40 and 3,153,276.62 is: 4,351,521.58
Step by Step Solution
- Step 1: Write the proportion equation
5,731,651.22 : 7,909,678.40 = 3,153,276.62 : x - Step 2: Convert to fraction form
5,731,651.22/7,909,678.40 = 3,153,276.62/x - Step 3: Cross multiply
5,731,651.22x = 7,909,678.40 × 3,153,276.62 - Step 4: Simplify right side
5,731,651.22x = 24,941,403,970,439.01 - Step 5: Solve for x
x = 24,941,403,970,439.01/5,731,651.22 - Step 6: Final answer
x = 4,351,521.58
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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.