Finding the Fourth Proportional to 3,876,073.63, 5,348,981.68 and 2,157,600.11
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Solution
The fourth proportional to 3,876,073.63, 5,348,981.68 and 2,157,600.11 is: 2,977,488.18
Step by Step Solution
- Step 1: Write the proportion equation
3,876,073.63 : 5,348,981.68 = 2,157,600.11 : x - Step 2: Convert to fraction form
3,876,073.63/5,348,981.68 = 2,157,600.11/x - Step 3: Cross multiply
3,876,073.63x = 5,348,981.68 × 2,157,600.11 - Step 4: Simplify right side
3,876,073.63x = 11,540,963,429,017.08 - Step 5: Solve for x
x = 11,540,963,429,017.08/3,876,073.63 - Step 6: Final answer
x = 2,977,488.18
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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.