Finding the Fourth Proportional to 3,616,843.11, 4,991,308.02 and 1,985,402.31
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Solution
The fourth proportional to 3,616,843.11, 4,991,308.02 and 1,985,402.31 is: 2,739,890.61
Step by Step Solution
- Step 1: Write the proportion equation
3,616,843.11 : 4,991,308.02 = 1,985,402.31 : x - Step 2: Convert to fraction form
3,616,843.11/4,991,308.02 = 1,985,402.31/x - Step 3: Cross multiply
3,616,843.11x = 4,991,308.02 × 1,985,402.31 - Step 4: Simplify right side
3,616,843.11x = 9,909,754,472,829.53 - Step 5: Solve for x
x = 9,909,754,472,829.53/3,616,843.11 - Step 6: Final answer
x = 2,739,890.61
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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.