Finding the Fourth Proportional to 21,354,931.20, 32,029,286.40 and 6,207,283.20
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Solution
The fourth proportional to 21,354,931.20, 32,029,286.40 and 6,207,283.20 is: 9,310,020.69
Step by Step Solution
- Step 1: Write the proportion equation
21,354,931.20 : 32,029,286.40 = 6,207,283.20 : x - Step 2: Convert to fraction form
21,354,931.20/32,029,286.40 = 6,207,283.20/x - Step 3: Cross multiply
21,354,931.20x = 32,029,286.40 × 6,207,283.20 - Step 4: Simplify right side
21,354,931.20x = 198,814,851,378,708.47 - Step 5: Solve for x
x = 198,814,851,378,708.47/21,354,931.20 - Step 6: Final answer
x = 9,310,020.69
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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.