Finding the Fourth Proportional to 15,756,023.02, 21,743,290.70 and 8,512,679.02
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Solution
The fourth proportional to 15,756,023.02, 21,743,290.70 and 8,512,679.02 is: 11,747,485.67
Step by Step Solution
- Step 1: Write the proportion equation
15,756,023.02 : 21,743,290.70 = 8,512,679.02 : x - Step 2: Convert to fraction form
15,756,023.02/21,743,290.70 = 8,512,679.02/x - Step 3: Cross multiply
15,756,023.02x = 21,743,290.70 × 8,512,679.02 - Step 4: Simplify right side
15,756,023.02x = 185,093,654,567,651.09 - Step 5: Solve for x
x = 185,093,654,567,651.09/15,756,023.02 - Step 6: Final answer
x = 11,747,485.67
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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.