Finding the Fourth Proportional to 4,676,379.36, 6,453,272.88 and 2,639,378.40
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Solution
The fourth proportional to 4,676,379.36, 6,453,272.88 and 2,639,378.40 is: 3,642,268.46
Step by Step Solution
- Step 1: Write the proportion equation
4,676,379.36 : 6,453,272.88 = 2,639,378.40 : x - Step 2: Convert to fraction form
4,676,379.36/6,453,272.88 = 2,639,378.40/x - Step 3: Cross multiply
4,676,379.36x = 6,453,272.88 × 2,639,378.40 - Step 4: Simplify right side
4,676,379.36x = 17,032,629,048,777.79 - Step 5: Solve for x
x = 17,032,629,048,777.79/4,676,379.36 - Step 6: Final answer
x = 3,642,268.46
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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.