Finding the Fourth Proportional to 14,689,876.24, 20,270,419.50 and 8,493,985.32
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Solution
The fourth proportional to 14,689,876.24, 20,270,419.50 and 8,493,985.32 is: 11,720,768.97
Step by Step Solution
- Step 1: Write the proportion equation
14,689,876.24 : 20,270,419.50 = 8,493,985.32 : x - Step 2: Convert to fraction form
14,689,876.24/20,270,419.50 = 8,493,985.32/x - Step 3: Cross multiply
14,689,876.24x = 20,270,419.50 × 8,493,985.32 - Step 4: Simplify right side
14,689,876.24x = 172,176,645,663,241.75 - Step 5: Solve for x
x = 172,176,645,663,241.75/14,689,876.24 - Step 6: Final answer
x = 11,720,768.97
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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.