Finding the Fourth Proportional to 3,871,967.01, 5,343,444.11 and 2,129,710.08
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Solution
The fourth proportional to 3,871,967.01, 5,343,444.11 and 2,129,710.08 is: 2,939,071.21
Step by Step Solution
- Step 1: Write the proportion equation
3,871,967.01 : 5,343,444.11 = 2,129,710.08 : x - Step 2: Convert to fraction form
3,871,967.01/5,343,444.11 = 2,129,710.08/x - Step 3: Cross multiply
3,871,967.01x = 5,343,444.11 × 2,129,710.08 - Step 4: Simplify right side
3,871,967.01x = 11,379,986,772,335.08 - Step 5: Solve for x
x = 11,379,986,772,335.08/3,871,967.01 - Step 6: Final answer
x = 2,939,071.21
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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.