Finding the Fourth Proportional to 20,753,138.46, 31,148,598.09 and 11,045,901.09
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Solution
The fourth proportional to 20,753,138.46, 31,148,598.09 and 11,045,901.09 is: 16,578,906.09
Step by Step Solution
- Step 1: Write the proportion equation
20,753,138.46 : 31,148,598.09 = 11,045,901.09 : x - Step 2: Convert to fraction form
20,753,138.46/31,148,598.09 = 11,045,901.09/x - Step 3: Cross multiply
20,753,138.46x = 31,148,598.09 × 11,045,901.09 - Step 4: Simplify right side
20,753,138.46x = 344,064,333,594,302.94 - Step 5: Solve for x
x = 344,064,333,594,302.94/20,753,138.46 - Step 6: Final answer
x = 16,578,906.09
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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.