Finding the Fourth Proportional to 12,423,368.80, 18,645,550.80 and 4,855,765.60
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Solution
The fourth proportional to 12,423,368.80, 18,645,550.80 and 4,855,765.60 is: 7,287,751.46
Step by Step Solution
- Step 1: Write the proportion equation
12,423,368.80 : 18,645,550.80 = 4,855,765.60 : x - Step 2: Convert to fraction form
12,423,368.80/18,645,550.80 = 4,855,765.60/x - Step 3: Cross multiply
12,423,368.80x = 18,645,550.80 × 4,855,765.60 - Step 4: Simplify right side
12,423,368.80x = 90,538,424,167,692.48 - Step 5: Solve for x
x = 90,538,424,167,692.48/12,423,368.80 - Step 6: Final answer
x = 7,287,751.46
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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.