Finding the Fourth Proportional to 7,887,816.12, 11,835,101.88 and 2,496,905.40
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Solution
The fourth proportional to 7,887,816.12, 11,835,101.88 and 2,496,905.40 is: 3,746,427.32
Step by Step Solution
- Step 1: Write the proportion equation
7,887,816.12 : 11,835,101.88 = 2,496,905.40 : x - Step 2: Convert to fraction form
7,887,816.12/11,835,101.88 = 2,496,905.40/x - Step 3: Cross multiply
7,887,816.12x = 11,835,101.88 × 2,496,905.40 - Step 4: Simplify right side
7,887,816.12x = 29,551,129,793,722.15 - Step 5: Solve for x
x = 29,551,129,793,722.15/7,887,816.12 - Step 6: Final answer
x = 3,746,427.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.