Finding the Fourth Proportional to 5,186,971.01, 7,780,830.18 and 1,992,097.18
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Solution
The fourth proportional to 5,186,971.01, 7,780,830.18 and 1,992,097.18 is: 2,988,289.28
Step by Step Solution
- Step 1: Write the proportion equation
5,186,971.01 : 7,780,830.18 = 1,992,097.18 : x - Step 2: Convert to fraction form
5,186,971.01/7,780,830.18 = 1,992,097.18/x - Step 3: Cross multiply
5,186,971.01x = 7,780,830.18 × 1,992,097.18 - Step 4: Simplify right side
5,186,971.01x = 15,500,169,865,011.29 - Step 5: Solve for x
x = 15,500,169,865,011.29/5,186,971.01 - Step 6: Final answer
x = 2,988,289.28
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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.