Finding the Fourth Proportional to 5,119,423.92, 7,679,595.15 and 1,332,939.60
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Solution
The fourth proportional to 5,119,423.92, 7,679,595.15 and 1,332,939.60 is: 1,999,528.98
Step by Step Solution
- Step 1: Write the proportion equation
5,119,423.92 : 7,679,595.15 = 1,332,939.60 : x - Step 2: Convert to fraction form
5,119,423.92/7,679,595.15 = 1,332,939.60/x - Step 3: Cross multiply
5,119,423.92x = 7,679,595.15 × 1,332,939.60 - Step 4: Simplify right side
5,119,423.92x = 10,236,436,487,402.94 - Step 5: Solve for x
x = 10,236,436,487,402.94/5,119,423.92 - Step 6: Final answer
x = 1,999,528.98
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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.