Finding the Fourth Proportional to 4,748,841.40, 7,128,510.90 and 2,953,751.80
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Solution
The fourth proportional to 4,748,841.40, 7,128,510.90 and 2,953,751.80 is: 4,433,892.42
Step by Step Solution
- Step 1: Write the proportion equation
4,748,841.40 : 7,128,510.90 = 2,953,751.80 : x - Step 2: Convert to fraction form
4,748,841.40/7,128,510.90 = 2,953,751.80/x - Step 3: Cross multiply
4,748,841.40x = 7,128,510.90 × 2,953,751.80 - Step 4: Simplify right side
4,748,841.40x = 21,055,851,902,194.62 - Step 5: Solve for x
x = 21,055,851,902,194.62/4,748,841.40 - Step 6: Final answer
x = 4,433,892.42
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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.