Finding the Fourth Proportional to 7,164,709.97, 9,887,038.72 and 3,901,453.12
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Solution
The fourth proportional to 7,164,709.97, 9,887,038.72 and 3,901,453.12 is: 5,383,863.15
Step by Step Solution
- Step 1: Write the proportion equation
7,164,709.97 : 9,887,038.72 = 3,901,453.12 : x - Step 2: Convert to fraction form
7,164,709.97/9,887,038.72 = 3,901,453.12/x - Step 3: Cross multiply
7,164,709.97x = 9,887,038.72 × 3,901,453.12 - Step 4: Simplify right side
7,164,709.97x = 38,573,818,012,269.62 - Step 5: Solve for x
x = 38,573,818,012,269.62/7,164,709.97 - Step 6: Final answer
x = 5,383,863.15
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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.