Finding the Fourth Proportional to 5,418,438.68, 7,479,829.61 and 3,793,225.65
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Solution
The fourth proportional to 5,418,438.68, 7,479,829.61 and 3,793,225.65 is: 5,236,320.50
Step by Step Solution
- Step 1: Write the proportion equation
5,418,438.68 : 7,479,829.61 = 3,793,225.65 : x - Step 2: Convert to fraction form
5,418,438.68/7,479,829.61 = 3,793,225.65/x - Step 3: Cross multiply
5,418,438.68x = 7,479,829.61 × 3,793,225.65 - Step 4: Simplify right side
5,418,438.68x = 28,372,681,515,315.37 - Step 5: Solve for x
x = 28,372,681,515,315.37/5,418,438.68 - Step 6: Final answer
x = 5,236,320.50
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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.