Finding the Fourth Proportional to 2,118,933.05, 3,158,438.49 and 1,948,871.93
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Solution
The fourth proportional to 2,118,933.05, 3,158,438.49 and 1,948,871.93 is: 2,904,948.84
Step by Step Solution
- Step 1: Write the proportion equation
2,118,933.05 : 3,158,438.49 = 1,948,871.93 : x - Step 2: Convert to fraction form
2,118,933.05/3,158,438.49 = 1,948,871.93/x - Step 3: Cross multiply
2,118,933.05x = 3,158,438.49 × 1,948,871.93 - Step 4: Simplify right side
2,118,933.05x = 6,155,392,100,000.39 - Step 5: Solve for x
x = 6,155,392,100,000.39/2,118,933.05 - Step 6: Final answer
x = 2,904,948.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.