Finding the Fourth Proportional to 431,569,208.05, 646,609,794.67 and 201,065,531.65
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Solution
The fourth proportional to 431,569,208.05, 646,609,794.67 and 201,065,531.65 is: 301,251,664.18
Step by Step Solution
- Step 1: Write the proportion equation
431,569,208.05 : 646,609,794.67 = 201,065,531.65 : x - Step 2: Convert to fraction form
431,569,208.05/646,609,794.67 = 201,065,531.65/x - Step 3: Cross multiply
431,569,208.05x = 646,609,794.67 × 201,065,531.65 - Step 4: Simplify right side
431,569,208.05x = 130,010,942,135,420,880 - Step 5: Solve for x
x = 130,010,942,135,420,880/431,569,208.05 - Step 6: Final answer
x = 301,251,664.18
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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.