Finding the Fourth Proportional to 2,910,865.80, 4,366,298.70 and 2,117,713.80
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Solution
The fourth proportional to 2,910,865.80, 4,366,298.70 and 2,117,713.80 is: 3,176,570.70
Step by Step Solution
- Step 1: Write the proportion equation
2,910,865.80 : 4,366,298.70 = 2,117,713.80 : x - Step 2: Convert to fraction form
2,910,865.80/4,366,298.70 = 2,117,713.80/x - Step 3: Cross multiply
2,910,865.80x = 4,366,298.70 × 2,117,713.80 - Step 4: Simplify right side
2,910,865.80x = 9,246,571,011,912.06 - Step 5: Solve for x
x = 9,246,571,011,912.06/2,910,865.80 - Step 6: Final answer
x = 3,176,570.70
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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.