Finding the Fourth Proportional to 10,207,699.20, 15,318,547.20 and 4,531,996.80
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Solution
The fourth proportional to 10,207,699.20, 15,318,547.20 and 4,531,996.80 is: 6,801,102.34
Step by Step Solution
- Step 1: Write the proportion equation
10,207,699.20 : 15,318,547.20 = 4,531,996.80 : x - Step 2: Convert to fraction form
10,207,699.20/15,318,547.20 = 4,531,996.80/x - Step 3: Cross multiply
10,207,699.20x = 15,318,547.20 × 4,531,996.80 - Step 4: Simplify right side
10,207,699.20x = 69,423,606,891,048.95 - Step 5: Solve for x
x = 69,423,606,891,048.95/10,207,699.20 - Step 6: Final answer
x = 6,801,102.34
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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.