Finding the Fourth Proportional to 49,744,130.21, 74,658,120.10 and 21,010,886.81
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Solution
The fourth proportional to 49,744,130.21, 74,658,120.10 and 21,010,886.81 is: 31,534,038.37
Step by Step Solution
- Step 1: Write the proportion equation
49,744,130.21 : 74,658,120.10 = 21,010,886.81 : x - Step 2: Convert to fraction form
49,744,130.21/74,658,120.10 = 21,010,886.81/x - Step 3: Cross multiply
49,744,130.21x = 74,658,120.10 × 21,010,886.81 - Step 4: Simplify right side
49,744,130.21x = 1,568,633,310,442,668 - Step 5: Solve for x
x = 1,568,633,310,442,668/49,744,130.21 - Step 6: Final answer
x = 31,534,038.37
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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.