Finding the Fourth Proportional to 5,538,536.16, 7,643,175.84 and 3,124,088.16
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Solution
The fourth proportional to 5,538,536.16, 7,643,175.84 and 3,124,088.16 is: 4,311,239.37
Step by Step Solution
- Step 1: Write the proportion equation
5,538,536.16 : 7,643,175.84 = 3,124,088.16 : x - Step 2: Convert to fraction form
5,538,536.16/7,643,175.84 = 3,124,088.16/x - Step 3: Cross multiply
5,538,536.16x = 7,643,175.84 × 3,124,088.16 - Step 4: Simplify right side
5,538,536.16x = 23,877,955,146,542.05 - Step 5: Solve for x
x = 23,877,955,146,542.05/5,538,536.16 - Step 6: Final answer
x = 4,311,239.37
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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.