Finding the Fourth Proportional to 6,381,043.12, 8,805,943.34 and 3,480,433.26
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Solution
The fourth proportional to 6,381,043.12, 8,805,943.34 and 3,480,433.26 is: 4,803,054.53
Step by Step Solution
- Step 1: Write the proportion equation
6,381,043.12 : 8,805,943.34 = 3,480,433.26 : x - Step 2: Convert to fraction form
6,381,043.12/8,805,943.34 = 3,480,433.26/x - Step 3: Cross multiply
6,381,043.12x = 8,805,943.34 × 3,480,433.26 - Step 4: Simplify right side
6,381,043.12x = 30,648,498,086,211.48 - Step 5: Solve for x
x = 30,648,498,086,211.48/6,381,043.12 - Step 6: Final answer
x = 4,803,054.53
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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.