Finding the Fourth Proportional to 18,826,252.80, 28,239,252.84 and 12,464,972.88
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Solution
The fourth proportional to 18,826,252.80, 28,239,252.84 and 12,464,972.88 is: 18,697,375.66
Step by Step Solution
- Step 1: Write the proportion equation
18,826,252.80 : 28,239,252.84 = 12,464,972.88 : x - Step 2: Convert to fraction form
18,826,252.80/28,239,252.84 = 12,464,972.88/x - Step 3: Cross multiply
18,826,252.80x = 28,239,252.84 × 12,464,972.88 - Step 4: Simplify right side
18,826,252.80x = 352,001,520,802,063 - Step 5: Solve for x
x = 352,001,520,802,063/18,826,252.80 - Step 6: Final answer
x = 18,697,375.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.