Finding the Fourth Proportional to 4,920,983.70, 7,381,475.55 and 3,118,512.98
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Solution
The fourth proportional to 4,920,983.70, 7,381,475.55 and 3,118,512.98 is: 4,677,769.46
Step by Step Solution
- Step 1: Write the proportion equation
4,920,983.70 : 7,381,475.55 = 3,118,512.98 : x - Step 2: Convert to fraction form
4,920,983.70/7,381,475.55 = 3,118,512.98/x - Step 3: Cross multiply
4,920,983.70x = 7,381,475.55 × 3,118,512.98 - Step 4: Simplify right side
4,920,983.70x = 23,019,227,277,320.26 - Step 5: Solve for x
x = 23,019,227,277,320.26/4,920,983.70 - Step 6: Final answer
x = 4,677,769.46
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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.