Finding the Fourth Proportional to 8,806,721.40, 12,148,114.14 and 5,538,351.96
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Solution
The fourth proportional to 8,806,721.40, 12,148,114.14 and 5,538,351.96 is: 7,639,679.82
Step by Step Solution
- Step 1: Write the proportion equation
8,806,721.40 : 12,148,114.14 = 5,538,351.96 : x - Step 2: Convert to fraction form
8,806,721.40/12,148,114.14 = 5,538,351.96/x - Step 3: Cross multiply
8,806,721.40x = 12,148,114.14 × 5,538,351.96 - Step 4: Simplify right side
8,806,721.40x = 67,280,531,757,572.72 - Step 5: Solve for x
x = 67,280,531,757,572.72/8,806,721.40 - Step 6: Final answer
x = 7,639,679.82
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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.