Finding the Fourth Proportional to 10,612,879.75, 14,648,340.75 and 9,894,843.91
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Solution
The fourth proportional to 10,612,879.75, 14,648,340.75 and 9,894,843.91 is: 13,657,277.63
Step by Step Solution
- Step 1: Write the proportion equation
10,612,879.75 : 14,648,340.75 = 9,894,843.91 : x - Step 2: Convert to fraction form
10,612,879.75/14,648,340.75 = 9,894,843.91/x - Step 3: Cross multiply
10,612,879.75x = 14,648,340.75 × 9,894,843.91 - Step 4: Simplify right side
10,612,879.75x = 144,943,045,212,268.09 - Step 5: Solve for x
x = 144,943,045,212,268.09/10,612,879.75 - Step 6: Final answer
x = 13,657,277.63
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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.