Finding the Fourth Proportional to 4,209,109.21, 6,313,889.20 and 1,330,257.03
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Solution
The fourth proportional to 4,209,109.21, 6,313,889.20 and 1,330,257.03 is: 1,995,456.78
Step by Step Solution
- Step 1: Write the proportion equation
4,209,109.21 : 6,313,889.20 = 1,330,257.03 : x - Step 2: Convert to fraction form
4,209,109.21/6,313,889.20 = 1,330,257.03/x - Step 3: Cross multiply
4,209,109.21x = 6,313,889.20 × 1,330,257.03 - Step 4: Simplify right side
4,209,109.21x = 8,399,095,494,941.08 - Step 5: Solve for x
x = 8,399,095,494,941.08/4,209,109.21 - Step 6: Final answer
x = 1,995,456.78
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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.