Finding the Fourth Proportional to 96,887,543.80, 145,533,491.70 and 81,770,999.80
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Solution
The fourth proportional to 96,887,543.80, 145,533,491.70 and 81,770,999.80 is: 122,827,131.89
Step by Step Solution
- Step 1: Write the proportion equation
96,887,543.80 : 145,533,491.70 = 81,770,999.80 : x - Step 2: Convert to fraction form
96,887,543.80/145,533,491.70 = 81,770,999.80/x - Step 3: Cross multiply
96,887,543.80x = 145,533,491.70 × 81,770,999.80 - Step 4: Simplify right side
96,887,543.80x = 11,900,419,120,694,000 - Step 5: Solve for x
x = 11,900,419,120,694,000/96,887,543.80 - Step 6: Final answer
x = 122,827,131.89
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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.