Finding the Fourth Proportional to 38,351,708.65, 52,925,007.36 and 20,948,048.65
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Solution
The fourth proportional to 38,351,708.65, 52,925,007.36 and 20,948,048.65 is: 28,908,115.65
Step by Step Solution
- Step 1: Write the proportion equation
38,351,708.65 : 52,925,007.36 = 20,948,048.65 : x - Step 2: Convert to fraction form
38,351,708.65/52,925,007.36 = 20,948,048.65/x - Step 3: Cross multiply
38,351,708.65x = 52,925,007.36 × 20,948,048.65 - Step 4: Simplify right side
38,351,708.65x = 1,108,675,628,978,888 - Step 5: Solve for x
x = 1,108,675,628,978,888/38,351,708.65 - Step 6: Final answer
x = 28,908,115.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.