Finding the Fourth Proportional to 15,114,261.96, 20,856,894.53 and 8,586,985.50
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Solution
The fourth proportional to 15,114,261.96, 20,856,894.53 and 8,586,985.50 is: 11,849,592.88
Step by Step Solution
- Step 1: Write the proportion equation
15,114,261.96 : 20,856,894.53 = 8,586,985.50 : x - Step 2: Convert to fraction form
15,114,261.96/20,856,894.53 = 8,586,985.50/x - Step 3: Cross multiply
15,114,261.96x = 20,856,894.53 × 8,586,985.50 - Step 4: Simplify right side
15,114,261.96x = 179,097,850,861,204.38 - Step 5: Solve for x
x = 179,097,850,861,204.38/15,114,261.96 - Step 6: Final answer
x = 11,849,592.88
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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.