Finding the Fourth Proportional to 11,966,721.68, 17,940,090.36 and 5,573,683.28
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Solution
The fourth proportional to 11,966,721.68, 17,940,090.36 and 5,573,683.28 is: 8,355,870.92
Step by Step Solution
- Step 1: Write the proportion equation
11,966,721.68 : 17,940,090.36 = 5,573,683.28 : x - Step 2: Convert to fraction form
11,966,721.68/17,940,090.36 = 5,573,683.28/x - Step 3: Cross multiply
11,966,721.68x = 17,940,090.36 × 5,573,683.28 - Step 4: Simplify right side
11,966,721.68x = 99,992,381,681,221.19 - Step 5: Solve for x
x = 99,992,381,681,221.19/11,966,721.68 - Step 6: Final answer
x = 8,355,870.92
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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.