Finding the Fourth Proportional to 8,518,286.70, 12,777,430.05 and 5,159,054.70
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Solution
The fourth proportional to 8,518,286.70, 12,777,430.05 and 5,159,054.70 is: 7,738,582.05
Step by Step Solution
- Step 1: Write the proportion equation
8,518,286.70 : 12,777,430.05 = 5,159,054.70 : x - Step 2: Convert to fraction form
8,518,286.70/12,777,430.05 = 5,159,054.70/x - Step 3: Cross multiply
8,518,286.70x = 12,777,430.05 × 5,159,054.70 - Step 4: Simplify right side
8,518,286.70x = 65,919,460,553,373.74 - Step 5: Solve for x
x = 65,919,460,553,373.74/8,518,286.70 - Step 6: Final answer
x = 7,738,582.05
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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.