Finding the Fourth Proportional to 20,865,456.96, 31,298,402.88 and 5,719,390.08
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Solution
The fourth proportional to 20,865,456.96, 31,298,402.88 and 5,719,390.08 is: 8,579,144.72
Step by Step Solution
- Step 1: Write the proportion equation
20,865,456.96 : 31,298,402.88 = 5,719,390.08 : x - Step 2: Convert to fraction form
20,865,456.96/31,298,402.88 = 5,719,390.08/x - Step 3: Cross multiply
20,865,456.96x = 31,298,402.88 × 5,719,390.08 - Step 4: Simplify right side
20,865,456.96x = 179,007,774,951,715.44 - Step 5: Solve for x
x = 179,007,774,951,715.44/20,865,456.96 - Step 6: Final answer
x = 8,579,144.72
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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.