Finding the Fourth Proportional to 3,781,466.17, 5,218,827.57 and 2,312,235.82
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Solution
The fourth proportional to 3,781,466.17, 5,218,827.57 and 2,312,235.82 is: 3,191,132.62
Step by Step Solution
- Step 1: Write the proportion equation
3,781,466.17 : 5,218,827.57 = 2,312,235.82 : x - Step 2: Convert to fraction form
3,781,466.17/5,218,827.57 = 2,312,235.82/x - Step 3: Cross multiply
3,781,466.17x = 5,218,827.57 × 2,312,235.82 - Step 4: Simplify right side
3,781,466.17x = 12,067,160,052,281.09 - Step 5: Solve for x
x = 12,067,160,052,281.09/3,781,466.17 - Step 6: Final answer
x = 3,191,132.62
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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.