Finding the Fourth Proportional to 5,021,128.72, 6,929,129.64 and 2,846,083.12
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Solution
The fourth proportional to 5,021,128.72, 6,929,129.64 and 2,846,083.12 is: 3,927,578.84
Step by Step Solution
- Step 1: Write the proportion equation
5,021,128.72 : 6,929,129.64 = 2,846,083.12 : x - Step 2: Convert to fraction form
5,021,128.72/6,929,129.64 = 2,846,083.12/x - Step 3: Cross multiply
5,021,128.72x = 6,929,129.64 × 2,846,083.12 - Step 4: Simplify right side
5,021,128.72x = 19,720,878,904,695.68 - Step 5: Solve for x
x = 19,720,878,904,695.68/5,021,128.72 - Step 6: Final answer
x = 3,927,578.84
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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.