Finding the Fourth Proportional to 15,203,328.62, 20,980,586.80 and 8,234,006.54
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Solution
The fourth proportional to 15,203,328.62, 20,980,586.80 and 8,234,006.54 is: 11,362,925.39
Step by Step Solution
- Step 1: Write the proportion equation
15,203,328.62 : 20,980,586.80 = 8,234,006.54 : x - Step 2: Convert to fraction form
15,203,328.62/20,980,586.80 = 8,234,006.54/x - Step 3: Cross multiply
15,203,328.62x = 20,980,586.80 × 8,234,006.54 - Step 4: Simplify right side
15,203,328.62x = 172,754,288,798,749.72 - Step 5: Solve for x
x = 172,754,288,798,749.72/15,203,328.62 - Step 6: Final answer
x = 11,362,925.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.