Finding the Fourth Proportional to 5,238,740.40, 7,842,364.20 and 3,107,727.60
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Solution
The fourth proportional to 5,238,740.40, 7,842,364.20 and 3,107,727.60 is: 4,652,250.31
Step by Step Solution
- Step 1: Write the proportion equation
5,238,740.40 : 7,842,364.20 = 3,107,727.60 : x - Step 2: Convert to fraction form
5,238,740.40/7,842,364.20 = 3,107,727.60/x - Step 3: Cross multiply
5,238,740.40x = 7,842,364.20 × 3,107,727.60 - Step 4: Simplify right side
5,238,740.40x = 24,371,931,673,591.92 - Step 5: Solve for x
x = 24,371,931,673,591.92/5,238,740.40 - Step 6: Final answer
x = 4,652,250.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.