Finding the Fourth Proportional to 8,168,679.20, 12,251,706.60 and 2,487,582.20
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Solution
The fourth proportional to 8,168,679.20, 12,251,706.60 and 2,487,582.20 is: 3,730,973.70
Step by Step Solution
- Step 1: Write the proportion equation
8,168,679.20 : 12,251,706.60 = 2,487,582.20 : x - Step 2: Convert to fraction form
8,168,679.20/12,251,706.60 = 2,487,582.20/x - Step 3: Cross multiply
8,168,679.20x = 12,251,706.60 × 2,487,582.20 - Step 4: Simplify right side
8,168,679.20x = 30,477,127,257,782.52 - Step 5: Solve for x
x = 30,477,127,257,782.52/8,168,679.20 - Step 6: Final answer
x = 3,730,973.70
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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.