Finding the Fourth Proportional to 245,284,191.09, 338,490,628.70 and 139,437,612
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Solution
The fourth proportional to 245,284,191.09, 338,490,628.70 and 139,437,612 is: 192,423,020.58
Step by Step Solution
- Step 1: Write the proportion equation
245,284,191.09 : 338,490,628.70 = 139,437,612 : x - Step 2: Convert to fraction form
245,284,191.09/338,490,628.70 = 139,437,612/x - Step 3: Cross multiply
245,284,191.09x = 338,490,628.70 × 139,437,612 - Step 4: Simplify right side
245,284,191.09x = 47,198,324,949,609,472 - Step 5: Solve for x
x = 47,198,324,949,609,472/245,284,191.09 - Step 6: Final answer
x = 192,423,020.58
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1.5x scale
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.