Finding the Fourth Proportional to 7,432,934.80, 11,149,402.20 and 2,646,029.20
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Solution
The fourth proportional to 7,432,934.80, 11,149,402.20 and 2,646,029.20 is: 3,969,043.80
Step by Step Solution
- Step 1: Write the proportion equation
7,432,934.80 : 11,149,402.20 = 2,646,029.20 : x - Step 2: Convert to fraction form
7,432,934.80/11,149,402.20 = 2,646,029.20/x - Step 3: Cross multiply
7,432,934.80x = 11,149,402.20 × 2,646,029.20 - Step 4: Simplify right side
7,432,934.80x = 29,501,643,783,744.24 - Step 5: Solve for x
x = 29,501,643,783,744.24/7,432,934.80 - Step 6: Final answer
x = 3,969,043.80
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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.