Finding the Fourth Proportional to 7,245,315.17, 9,998,556.77 and 3,982,464.26
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Solution
The fourth proportional to 7,245,315.17, 9,998,556.77 and 3,982,464.26 is: 5,495,812.68
Step by Step Solution
- Step 1: Write the proportion equation
7,245,315.17 : 9,998,556.77 = 3,982,464.26 : x - Step 2: Convert to fraction form
7,245,315.17/9,998,556.77 = 3,982,464.26/x - Step 3: Cross multiply
7,245,315.17x = 9,998,556.77 × 3,982,464.26 - Step 4: Simplify right side
7,245,315.17x = 39,818,894,918,200.94 - Step 5: Solve for x
x = 39,818,894,918,200.94/7,245,315.17 - Step 6: Final answer
x = 5,495,812.68
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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.