Finding the Fourth Proportional to 30,313,591.25, 45,469,730.35 and 8,453,387.19
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Solution
The fourth proportional to 30,313,591.25, 45,469,730.35 and 8,453,387.19 is: 12,679,897.70
Step by Step Solution
- Step 1: Write the proportion equation
30,313,591.25 : 45,469,730.35 = 8,453,387.19 : x - Step 2: Convert to fraction form
30,313,591.25/45,469,730.35 = 8,453,387.19/x - Step 3: Cross multiply
30,313,591.25x = 45,469,730.35 × 8,453,387.19 - Step 4: Simplify right side
30,313,591.25x = 384,373,236,084,010.94 - Step 5: Solve for x
x = 384,373,236,084,010.94/30,313,591.25 - Step 6: Final answer
x = 12,679,897.70
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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.