Finding the Fourth Proportional to 10,255,763.58, 14,157,311.57 and 6,390,194.61
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Solution
The fourth proportional to 10,255,763.58, 14,157,311.57 and 6,390,194.61 is: 8,821,183.85
Step by Step Solution
- Step 1: Write the proportion equation
10,255,763.58 : 14,157,311.57 = 6,390,194.61 : x - Step 2: Convert to fraction form
10,255,763.58/14,157,311.57 = 6,390,194.61/x - Step 3: Cross multiply
10,255,763.58x = 14,157,311.57 × 6,390,194.61 - Step 4: Simplify right side
10,255,763.58x = 90,467,976,054,753.67 - Step 5: Solve for x
x = 90,467,976,054,753.67/10,255,763.58 - Step 6: Final answer
x = 8,821,183.85
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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.