Finding the Fourth Proportional to 6,348,689.48, 8,763,866.74 and 4,286,495.40
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Solution
The fourth proportional to 6,348,689.48, 8,763,866.74 and 4,286,495.40 is: 5,917,169.92
Step by Step Solution
- Step 1: Write the proportion equation
6,348,689.48 : 8,763,866.74 = 4,286,495.40 : x - Step 2: Convert to fraction form
6,348,689.48/8,763,866.74 = 4,286,495.40/x - Step 3: Cross multiply
6,348,689.48x = 8,763,866.74 × 4,286,495.40 - Step 4: Simplify right side
6,348,689.48x = 37,566,274,415,605.09 - Step 5: Solve for x
x = 37,566,274,415,605.09/6,348,689.48 - Step 6: Final answer
x = 5,917,169.92
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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.