Finding the Fourth Proportional to 5,473,424.80, 8,209,359.60 and 1,879,357.60
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Solution
The fourth proportional to 5,473,424.80, 8,209,359.60 and 1,879,357.60 is: 2,818,769.40
Step by Step Solution
- Step 1: Write the proportion equation
5,473,424.80 : 8,209,359.60 = 1,879,357.60 : x - Step 2: Convert to fraction form
5,473,424.80/8,209,359.60 = 1,879,357.60/x - Step 3: Cross multiply
5,473,424.80x = 8,209,359.60 × 1,879,357.60 - Step 4: Simplify right side
5,473,424.80x = 15,428,322,355,392.96 - Step 5: Solve for x
x = 15,428,322,355,392.96/5,473,424.80 - Step 6: Final answer
x = 2,818,769.40
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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.