Finding the Fourth Proportional to 3,889,835.68, 5,368,675.88 and 2,320,068.12
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Solution
The fourth proportional to 3,889,835.68, 5,368,675.88 and 2,320,068.12 is: 3,202,113.09
Step by Step Solution
- Step 1: Write the proportion equation
3,889,835.68 : 5,368,675.88 = 2,320,068.12 : x - Step 2: Convert to fraction form
3,889,835.68/5,368,675.88 = 2,320,068.12/x - Step 3: Cross multiply
3,889,835.68x = 5,368,675.88 × 2,320,068.12 - Step 4: Simplify right side
3,889,835.68x = 12,455,693,755,800.95 - Step 5: Solve for x
x = 12,455,693,755,800.95/3,889,835.68 - Step 6: Final answer
x = 3,202,113.09
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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.