Finding the Fourth Proportional to 5,290,138.14, 7,301,188.17 and 3,226,351.56
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Solution
The fourth proportional to 5,290,138.14, 7,301,188.17 and 3,226,351.56 is: 4,452,851.55
Step by Step Solution
- Step 1: Write the proportion equation
5,290,138.14 : 7,301,188.17 = 3,226,351.56 : x - Step 2: Convert to fraction form
5,290,138.14/7,301,188.17 = 3,226,351.56/x - Step 3: Cross multiply
5,290,138.14x = 7,301,188.17 × 3,226,351.56 - Step 4: Simplify right side
5,290,138.14x = 23,556,199,842,133.05 - Step 5: Solve for x
x = 23,556,199,842,133.05/5,290,138.14 - Step 6: Final answer
x = 4,452,851.55
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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.