Finding the Fourth Proportional to 7,884,829.20, 11,827,243.80 and 5,192,194.80
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Solution
The fourth proportional to 7,884,829.20, 11,827,243.80 and 5,192,194.80 is: 7,788,292.20
Step by Step Solution
- Step 1: Write the proportion equation
7,884,829.20 : 11,827,243.80 = 5,192,194.80 : x - Step 2: Convert to fraction form
7,884,829.20/11,827,243.80 = 5,192,194.80/x - Step 3: Cross multiply
7,884,829.20x = 11,827,243.80 × 5,192,194.80 - Step 4: Simplify right side
7,884,829.20x = 61,409,353,756,692.24 - Step 5: Solve for x
x = 61,409,353,756,692.24/7,884,829.20 - Step 6: Final answer
x = 7,788,292.20
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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.