Finding the Fourth Proportional to 431,569,222.05, 646,609,815.67 and 201,065,545.65
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Solution
The fourth proportional to 431,569,222.05, 646,609,815.67 and 201,065,545.65 is: 301,251,685.17
Step by Step Solution
- Step 1: Write the proportion equation
431,569,222.05 : 646,609,815.67 = 201,065,545.65 : x - Step 2: Convert to fraction form
431,569,222.05/646,609,815.67 = 201,065,545.65/x - Step 3: Cross multiply
431,569,222.05x = 646,609,815.67 × 201,065,545.65 - Step 4: Simplify right side
431,569,222.05x = 130,010,955,410,334,464 - Step 5: Solve for x
x = 130,010,955,410,334,464/431,569,222.05 - Step 6: Final answer
x = 301,251,685.17
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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.