Finding the Fourth Proportional to 91,146,276.40, 136,782,400.20 and 65,609,114.80
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Solution
The fourth proportional to 91,146,276.40, 136,782,400.20 and 65,609,114.80 is: 98,459,010.63
Step by Step Solution
- Step 1: Write the proportion equation
91,146,276.40 : 136,782,400.20 = 65,609,114.80 : x - Step 2: Convert to fraction form
91,146,276.40/136,782,400.20 = 65,609,114.80/x - Step 3: Cross multiply
91,146,276.40x = 136,782,400.20 × 65,609,114.80 - Step 4: Simplify right side
91,146,276.40x = 8,974,172,197,341,342 - Step 5: Solve for x
x = 8,974,172,197,341,342/91,146,276.40 - Step 6: Final answer
x = 98,459,010.63
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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.