Finding the Fourth Proportional to 5,635,876.74, 7,777,271.12 and 3,188,529.51
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Solution
The fourth proportional to 5,635,876.74, 7,777,271.12 and 3,188,529.51 is: 4,400,035.63
Step by Step Solution
- Step 1: Write the proportion equation
5,635,876.74 : 7,777,271.12 = 3,188,529.51 : x - Step 2: Convert to fraction form
5,635,876.74/7,777,271.12 = 3,188,529.51/x - Step 3: Cross multiply
5,635,876.74x = 7,777,271.12 × 3,188,529.51 - Step 4: Simplify right side
5,635,876.74x = 24,798,058,473,390.75 - Step 5: Solve for x
x = 24,798,058,473,390.75/5,635,876.74 - Step 6: Final answer
x = 4,400,035.63
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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.