Finding the Fourth Proportional to 20,926,747.79, 31,391,343.32 and 6,354,142.68
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Solution
The fourth proportional to 20,926,747.79, 31,391,343.32 and 6,354,142.68 is: 9,531,584.95
Step by Step Solution
- Step 1: Write the proportion equation
20,926,747.79 : 31,391,343.32 = 6,354,142.68 : x - Step 2: Convert to fraction form
20,926,747.79/31,391,343.32 = 6,354,142.68/x - Step 3: Cross multiply
20,926,747.79x = 31,391,343.32 × 6,354,142.68 - Step 4: Simplify right side
20,926,747.79x = 199,465,074,372,144.88 - Step 5: Solve for x
x = 199,465,074,372,144.88/20,926,747.79 - Step 6: Final answer
x = 9,531,584.95
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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.