Finding the Fourth Proportional to 2,975,663.40, 4,454,163.90 and 2,135,855.40
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Solution
The fourth proportional to 2,975,663.40, 4,454,163.90 and 2,135,855.40 is: 3,197,085.40
Step by Step Solution
- Step 1: Write the proportion equation
2,975,663.40 : 4,454,163.90 = 2,135,855.40 : x - Step 2: Convert to fraction form
2,975,663.40/4,454,163.90 = 2,135,855.40/x - Step 3: Cross multiply
2,975,663.40x = 4,454,163.90 × 2,135,855.40 - Step 4: Simplify right side
2,975,663.40x = 9,513,450,018,300.06 - Step 5: Solve for x
x = 9,513,450,018,300.06/2,975,663.40 - Step 6: Final answer
x = 3,197,085.40
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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.