Finding the Fourth Proportional to 20,710,750.97, 31,066,125.57 and 19,675,133.03
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Solution
The fourth proportional to 20,710,750.97, 31,066,125.57 and 19,675,133.03 is: 29,512,698.70
Step by Step Solution
- Step 1: Write the proportion equation
20,710,750.97 : 31,066,125.57 = 19,675,133.03 : x - Step 2: Convert to fraction form
20,710,750.97/31,066,125.57 = 19,675,133.03/x - Step 3: Cross multiply
20,710,750.97x = 31,066,125.57 × 19,675,133.03 - Step 4: Simplify right side
20,710,750.97x = 611,230,153,161,103.88 - Step 5: Solve for x
x = 611,230,153,161,103.88/20,710,750.97 - Step 6: Final answer
x = 29,512,698.70
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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.