Finding the Fourth Proportional to 5,638,690.44, 7,781,449.46 and 3,060,394.12
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Solution
The fourth proportional to 5,638,690.44, 7,781,449.46 and 3,060,394.12 is: 4,223,374.63
Step by Step Solution
- Step 1: Write the proportion equation
5,638,690.44 : 7,781,449.46 = 3,060,394.12 : x - Step 2: Convert to fraction form
5,638,690.44/7,781,449.46 = 3,060,394.12/x - Step 3: Cross multiply
5,638,690.44x = 7,781,449.46 × 3,060,394.12 - Step 4: Simplify right side
5,638,690.44x = 23,814,302,172,461.18 - Step 5: Solve for x
x = 23,814,302,172,461.18/5,638,690.44 - Step 6: Final answer
x = 4,223,374.63
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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.