Finding the Fourth Proportional to 4,698,251.30, 7,042,128.15 and 2,002,117.70
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Solution
The fourth proportional to 4,698,251.30, 7,042,128.15 and 2,002,117.70 is: 3,000,939.82
Step by Step Solution
- Step 1: Write the proportion equation
4,698,251.30 : 7,042,128.15 = 2,002,117.70 : x - Step 2: Convert to fraction form
4,698,251.30/7,042,128.15 = 2,002,117.70/x - Step 3: Cross multiply
4,698,251.30x = 7,042,128.15 × 2,002,117.70 - Step 4: Simplify right side
4,698,251.30x = 14,099,169,414,783.26 - Step 5: Solve for x
x = 14,099,169,414,783.26/4,698,251.30 - Step 6: Final answer
x = 3,000,939.82
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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.