Finding the Fourth Proportional to 3,903,714.53, 5,387,294.42 and 2,161,383.95
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Solution
The fourth proportional to 3,903,714.53, 5,387,294.42 and 2,161,383.95 is: 2,982,803.07
Step by Step Solution
- Step 1: Write the proportion equation
3,903,714.53 : 5,387,294.42 = 2,161,383.95 : x - Step 2: Convert to fraction form
3,903,714.53/5,387,294.42 = 2,161,383.95/x - Step 3: Cross multiply
3,903,714.53x = 5,387,294.42 × 2,161,383.95 - Step 4: Simplify right side
3,903,714.53x = 11,644,011,655,569.17 - Step 5: Solve for x
x = 11,644,011,655,569.17/3,903,714.53 - Step 6: Final answer
x = 2,982,803.07
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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.