Finding the Fourth Proportional to 4,000,620.19, 5,520,812.83 and 2,165,038.15
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Solution
The fourth proportional to 4,000,620.19, 5,520,812.83 and 2,165,038.15 is: 2,987,729.36
Step by Step Solution
- Step 1: Write the proportion equation
4,000,620.19 : 5,520,812.83 = 2,165,038.15 : x - Step 2: Convert to fraction form
4,000,620.19/5,520,812.83 = 2,165,038.15/x - Step 3: Cross multiply
4,000,620.19x = 5,520,812.83 × 2,165,038.15 - Step 4: Simplify right side
4,000,620.19x = 11,952,770,395,959.46 - Step 5: Solve for x
x = 11,952,770,395,959.46/4,000,620.19 - Step 6: Final answer
x = 2,987,729.36
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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.