Finding the Fourth Proportional to 2,985,072.14, 4,455,889.63 and 2,607,158.54
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Solution
The fourth proportional to 2,985,072.14, 4,455,889.63 and 2,607,158.54 is: 3,891,768.83
Step by Step Solution
- Step 1: Write the proportion equation
2,985,072.14 : 4,455,889.63 = 2,607,158.54 : x - Step 2: Convert to fraction form
2,985,072.14/4,455,889.63 = 2,607,158.54/x - Step 3: Cross multiply
2,985,072.14x = 4,455,889.63 × 2,607,158.54 - Step 4: Simplify right side
2,985,072.14x = 11,617,210,721,439.03 - Step 5: Solve for x
x = 11,617,210,721,439.03/2,985,072.14 - Step 6: Final answer
x = 3,891,768.83
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.