Finding the Fourth Proportional to 8,518,277.70, 12,777,416.55 and 5,329,631.70
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Solution
The fourth proportional to 8,518,277.70, 12,777,416.55 and 5,329,631.70 is: 7,994,447.55
Step by Step Solution
- Step 1: Write the proportion equation
8,518,277.70 : 12,777,416.55 = 5,329,631.70 : x - Step 2: Convert to fraction form
8,518,277.70/12,777,416.55 = 5,329,631.70/x - Step 3: Cross multiply
8,518,277.70x = 12,777,416.55 × 5,329,631.70 - Step 4: Simplify right side
8,518,277.70x = 68,098,924,288,984.64 - Step 5: Solve for x
x = 68,098,924,288,984.64/8,518,277.70 - Step 6: Final answer
x = 7,994,447.55
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1.5x scale
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.