Finding the Fourth Proportional to 4,007,862.88, 5,530,871.28 and 2,172,323.68
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Solution
The fourth proportional to 4,007,862.88, 5,530,871.28 and 2,172,323.68 is: 2,997,817.79
Step by Step Solution
- Step 1: Write the proportion equation
4,007,862.88 : 5,530,871.28 = 2,172,323.68 : x - Step 2: Convert to fraction form
4,007,862.88/5,530,871.28 = 2,172,323.68/x - Step 3: Cross multiply
4,007,862.88x = 5,530,871.28 × 2,172,323.68 - Step 4: Simplify right side
4,007,862.88x = 12,014,842,652,575.91 - Step 5: Solve for x
x = 12,014,842,652,575.91/4,007,862.88 - Step 6: Final answer
x = 2,997,817.79
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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.