Finding the Fourth Proportional to 3,876,746.26, 5,349,909.99 and 2,157,829.96
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Solution
The fourth proportional to 3,876,746.26, 5,349,909.99 and 2,157,829.96 is: 2,977,805.43
Step by Step Solution
- Step 1: Write the proportion equation
3,876,746.26 : 5,349,909.99 = 2,157,829.96 : x - Step 2: Convert to fraction form
3,876,746.26/5,349,909.99 = 2,157,829.96/x - Step 3: Cross multiply
3,876,746.26x = 5,349,909.99 × 2,157,829.96 - Step 4: Simplify right side
3,876,746.26x = 11,544,196,059,725.30 - Step 5: Solve for x
x = 11,544,196,059,725.30/3,876,746.26 - Step 6: Final answer
x = 2,977,805.43
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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.