Finding the Fourth Proportional to 40,284,536.42, 55,592,668.26 and 21,949,821.92
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Solution
The fourth proportional to 40,284,536.42, 55,592,668.26 and 21,949,821.92 is: 30,290,758.61
Step by Step Solution
- Step 1: Write the proportion equation
40,284,536.42 : 55,592,668.26 = 21,949,821.92 : x - Step 2: Convert to fraction form
40,284,536.42/55,592,668.26 = 21,949,821.92/x - Step 3: Cross multiply
40,284,536.42x = 55,592,668.26 × 21,949,821.92 - Step 4: Simplify right side
40,284,536.42x = 1,220,249,168,364,636.25 - Step 5: Solve for x
x = 1,220,249,168,364,636.25/40,284,536.42 - Step 6: Final answer
x = 30,290,758.61
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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.