Finding the Fourth Proportional to 11,369,668.80, 15,690,348.16 and 6,213,247.68
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Solution
The fourth proportional to 11,369,668.80, 15,690,348.16 and 6,213,247.68 is: 8,574,393.94
Step by Step Solution
- Step 1: Write the proportion equation
11,369,668.80 : 15,690,348.16 = 6,213,247.68 : x - Step 2: Convert to fraction form
11,369,668.80/15,690,348.16 = 6,213,247.68/x - Step 3: Cross multiply
11,369,668.80x = 15,690,348.16 × 6,213,247.68 - Step 4: Simplify right side
11,369,668.80x = 97,488,019,303,512.27 - Step 5: Solve for x
x = 97,488,019,303,512.27/11,369,668.80 - Step 6: Final answer
x = 8,574,393.94
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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.