Finding the Fourth Proportional to 6,748,850.78, 10,121,193.05 and 1,956,893.21
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Solution
The fourth proportional to 6,748,850.78, 10,121,193.05 and 1,956,893.21 is: 2,934,735.79
Step by Step Solution
- Step 1: Write the proportion equation
6,748,850.78 : 10,121,193.05 = 1,956,893.21 : x - Step 2: Convert to fraction form
6,748,850.78/10,121,193.05 = 1,956,893.21/x - Step 3: Cross multiply
6,748,850.78x = 10,121,193.05 × 1,956,893.21 - Step 4: Simplify right side
6,748,850.78x = 19,806,093,896,253.76 - Step 5: Solve for x
x = 19,806,093,896,253.76/6,748,850.78 - Step 6: Final answer
x = 2,934,735.79
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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.