Finding the Fourth Proportional to 4,382,317.60, 6,573,476.40 and 3,990,407.20
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Solution
The fourth proportional to 4,382,317.60, 6,573,476.40 and 3,990,407.20 is: 5,985,610.80
Step by Step Solution
- Step 1: Write the proportion equation
4,382,317.60 : 6,573,476.40 = 3,990,407.20 : x - Step 2: Convert to fraction form
4,382,317.60/6,573,476.40 = 3,990,407.20/x - Step 3: Cross multiply
4,382,317.60x = 6,573,476.40 × 3,990,407.20 - Step 4: Simplify right side
4,382,317.60x = 26,230,847,555,590.08 - Step 5: Solve for x
x = 26,230,847,555,590.08/4,382,317.60 - Step 6: Final answer
x = 5,985,610.80
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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.