Finding the Fourth Proportional to 17,420,231.20, 26,128,657.20 and 5,289,799.68
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Solution
The fourth proportional to 17,420,231.20, 26,128,657.20 and 5,289,799.68 is: 7,934,186.46
Step by Step Solution
- Step 1: Write the proportion equation
17,420,231.20 : 26,128,657.20 = 5,289,799.68 : x - Step 2: Convert to fraction form
17,420,231.20/26,128,657.20 = 5,289,799.68/x - Step 3: Cross multiply
17,420,231.20x = 26,128,657.20 × 5,289,799.68 - Step 4: Simplify right side
17,420,231.20x = 138,215,362,495,389.69 - Step 5: Solve for x
x = 138,215,362,495,389.69/17,420,231.20 - Step 6: Final answer
x = 7,934,186.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.