Finding the Fourth Proportional to 2,666,538.93, 3,679,816.28 and 1,442,865.20
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Solution
The fourth proportional to 2,666,538.93, 3,679,816.28 and 1,442,865.20 is: 1,991,149.95
Step by Step Solution
- Step 1: Write the proportion equation
2,666,538.93 : 3,679,816.28 = 1,442,865.20 : x - Step 2: Convert to fraction form
2,666,538.93/3,679,816.28 = 1,442,865.20/x - Step 3: Cross multiply
2,666,538.93x = 3,679,816.28 × 1,442,865.20 - Step 4: Simplify right side
2,666,538.93x = 5,309,478,856,007.13 - Step 5: Solve for x
x = 5,309,478,856,007.13/2,666,538.93 - Step 6: Final answer
x = 1,991,149.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.