Finding the Fourth Proportional to 10,206,820.80, 15,310,231.20 and 6,805,598.40
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Solution
The fourth proportional to 10,206,820.80, 15,310,231.20 and 6,805,598.40 is: 10,208,397.60
Step by Step Solution
- Step 1: Write the proportion equation
10,206,820.80 : 15,310,231.20 = 6,805,598.40 : x - Step 2: Convert to fraction form
10,206,820.80/15,310,231.20 = 6,805,598.40/x - Step 3: Cross multiply
10,206,820.80x = 15,310,231.20 × 6,805,598.40 - Step 4: Simplify right side
10,206,820.80x = 104,195,284,958,350.08 - Step 5: Solve for x
x = 104,195,284,958,350.08/10,206,820.80 - Step 6: Final answer
x = 10,208,397.60
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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.