Finding the Fourth Proportional to 19,166,177.20, 28,749,265.80 and 11,991,723.70
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Solution
The fourth proportional to 19,166,177.20, 28,749,265.80 and 11,991,723.70 is: 17,987,585.55
Step by Step Solution
- Step 1: Write the proportion equation
19,166,177.20 : 28,749,265.80 = 11,991,723.70 : x - Step 2: Convert to fraction form
19,166,177.20/28,749,265.80 = 11,991,723.70/x - Step 3: Cross multiply
19,166,177.20x = 28,749,265.80 × 11,991,723.70 - Step 4: Simplify right side
19,166,177.20x = 344,753,252,051,459.44 - Step 5: Solve for x
x = 344,753,252,051,459.44/19,166,177.20 - Step 6: Final answer
x = 17,987,585.55
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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.