Finding the Fourth Proportional to 6,381,121.28, 9,563,699.36 and 3,187,139.00
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Solution
The fourth proportional to 6,381,121.28, 9,563,699.36 and 3,187,139.00 is: 4,776,721.50
Step by Step Solution
- Step 1: Write the proportion equation
6,381,121.28 : 9,563,699.36 = 3,187,139.00 : x - Step 2: Convert to fraction form
6,381,121.28/9,563,699.36 = 3,187,139.00/x - Step 3: Cross multiply
6,381,121.28x = 9,563,699.36 × 3,187,139.00 - Step 4: Simplify right side
6,381,121.28x = 30,480,839,174,680.39 - Step 5: Solve for x
x = 30,480,839,174,680.39/6,381,121.28 - Step 6: Final answer
x = 4,776,721.50
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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.