Finding the Fourth Proportional to 39,198,615.17, 58,805,771.45 and 21,951,343.49
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Solution
The fourth proportional to 39,198,615.17, 58,805,771.45 and 21,951,343.49 is: 32,931,410.52
Step by Step Solution
- Step 1: Write the proportion equation
39,198,615.17 : 58,805,771.45 = 21,951,343.49 : x - Step 2: Convert to fraction form
39,198,615.17/58,805,771.45 = 21,951,343.49/x - Step 3: Cross multiply
39,198,615.17x = 58,805,771.45 × 21,951,343.49 - Step 4: Simplify right side
39,198,615.17x = 1,290,865,687,889,599.75 - Step 5: Solve for x
x = 1,290,865,687,889,599.75/39,198,615.17 - Step 6: Final answer
x = 32,931,410.52
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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.