Finding the Fourth Proportional to 8,274,020.40, 12,387,994.20 and 4,221,752.40
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Solution
The fourth proportional to 8,274,020.40, 12,387,994.20 and 4,221,752.40 is: 6,320,874.46
Step by Step Solution
- Step 1: Write the proportion equation
8,274,020.40 : 12,387,994.20 = 4,221,752.40 : x - Step 2: Convert to fraction form
8,274,020.40/12,387,994.20 = 4,221,752.40/x - Step 3: Cross multiply
8,274,020.40x = 12,387,994.20 × 4,221,752.40 - Step 4: Simplify right side
8,274,020.40x = 52,299,044,245,036.08 - Step 5: Solve for x
x = 52,299,044,245,036.08/8,274,020.40 - Step 6: Final answer
x = 6,320,874.46
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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.