Finding the Fourth Proportional to 7,727,138.24, 10,662,917.36 and 4,289,108.63
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Solution
The fourth proportional to 7,727,138.24, 10,662,917.36 and 4,289,108.63 is: 5,918,673.82
Step by Step Solution
- Step 1: Write the proportion equation
7,727,138.24 : 10,662,917.36 = 4,289,108.63 : x - Step 2: Convert to fraction form
7,727,138.24/10,662,917.36 = 4,289,108.63/x - Step 3: Cross multiply
7,727,138.24x = 10,662,917.36 × 4,289,108.63 - Step 4: Simplify right side
7,727,138.24x = 45,734,410,794,992.69 - Step 5: Solve for x
x = 45,734,410,794,992.69/7,727,138.24 - Step 6: Final answer
x = 5,918,673.82
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1.5x scale
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.