Finding the Fourth Proportional to 7,869,057.44, 11,805,177.28 and 3,320,117.44
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Solution
The fourth proportional to 7,869,057.44, 11,805,177.28 and 3,320,117.44 is: 4,980,847.49
Step by Step Solution
- Step 1: Write the proportion equation
7,869,057.44 : 11,805,177.28 = 3,320,117.44 : x - Step 2: Convert to fraction form
7,869,057.44/11,805,177.28 = 3,320,117.44/x - Step 3: Cross multiply
7,869,057.44x = 11,805,177.28 × 3,320,117.44 - Step 4: Simplify right side
7,869,057.44x = 39,194,574,969,619.76 - Step 5: Solve for x
x = 39,194,574,969,619.76/7,869,057.44 - Step 6: Final answer
x = 4,980,847.49
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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.