Finding the Fourth Proportional to 479,101,201.80, 718,651,802.70 and 206,471,968.80
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Solution
The fourth proportional to 479,101,201.80, 718,651,802.70 and 206,471,968.80 is: 309,707,953.20
Step by Step Solution
- Step 1: Write the proportion equation
479,101,201.80 : 718,651,802.70 = 206,471,968.80 : x - Step 2: Convert to fraction form
479,101,201.80/718,651,802.70 = 206,471,968.80/x - Step 3: Cross multiply
479,101,201.80x = 718,651,802.70 × 206,471,968.80 - Step 4: Simplify right side
479,101,201.80x = 148,381,452,585,138,176 - Step 5: Solve for x
x = 148,381,452,585,138,176/479,101,201.80 - Step 6: Final answer
x = 309,707,953.20
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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.