Finding the Fourth Proportional to 4,329,663.04, 6,467,945.60 and 3,121,272.64
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Solution
The fourth proportional to 4,329,663.04, 6,467,945.60 and 3,121,272.64 is: 4,662,769.70
Step by Step Solution
- Step 1: Write the proportion equation
4,329,663.04 : 6,467,945.60 = 3,121,272.64 : x - Step 2: Convert to fraction form
4,329,663.04/6,467,945.60 = 3,121,272.64/x - Step 3: Cross multiply
4,329,663.04x = 6,467,945.60 × 3,121,272.64 - Step 4: Simplify right side
4,329,663.04x = 20,188,221,638,288.38 - Step 5: Solve for x
x = 20,188,221,638,288.38/4,329,663.04 - Step 6: Final answer
x = 4,662,769.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.