Finding the Fourth Proportional to 20,537,397.04, 28,341,614.80 and 11,245,554.80
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Solution
The fourth proportional to 20,537,397.04, 28,341,614.80 and 11,245,554.80 is: 15,518,869.39
Step by Step Solution
- Step 1: Write the proportion equation
20,537,397.04 : 28,341,614.80 = 11,245,554.80 : x - Step 2: Convert to fraction form
20,537,397.04/28,341,614.80 = 11,245,554.80/x - Step 3: Cross multiply
20,537,397.04x = 28,341,614.80 × 11,245,554.80 - Step 4: Simplify right side
20,537,397.04x = 318,717,182,353,891.06 - Step 5: Solve for x
x = 318,717,182,353,891.06/20,537,397.04 - Step 6: Final answer
x = 15,518,869.39
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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.