Finding the Fourth Proportional to 7,768,861.80, 11,652,272.10 and 2,378,052.60
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Solution
The fourth proportional to 7,768,861.80, 11,652,272.10 and 2,378,052.60 is: 3,566,766.49
Step by Step Solution
- Step 1: Write the proportion equation
7,768,861.80 : 11,652,272.10 = 2,378,052.60 : x - Step 2: Convert to fraction form
7,768,861.80/11,652,272.10 = 2,378,052.60/x - Step 3: Cross multiply
7,768,861.80x = 11,652,272.10 × 2,378,052.60 - Step 4: Simplify right side
7,768,861.80x = 27,709,715,963,312.46 - Step 5: Solve for x
x = 27,709,715,963,312.46/7,768,861.80 - Step 6: Final answer
x = 3,566,766.49
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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.