Finding the Fourth Proportional to 18,953,755.32, 28,430,609.94 and 6,174,239.16
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Solution
The fourth proportional to 18,953,755.32, 28,430,609.94 and 6,174,239.16 is: 9,261,351.23
Step by Step Solution
- Step 1: Write the proportion equation
18,953,755.32 : 28,430,609.94 = 6,174,239.16 : x - Step 2: Convert to fraction form
18,953,755.32/28,430,609.94 = 6,174,239.16/x - Step 3: Cross multiply
18,953,755.32x = 28,430,609.94 × 6,174,239.16 - Step 4: Simplify right side
18,953,755.32x = 175,537,385,234,233.25 - Step 5: Solve for x
x = 175,537,385,234,233.25/18,953,755.32 - Step 6: Final answer
x = 9,261,351.23
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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.