Finding the Fourth Proportional to 29,968,430.52, 41,351,985.36 and 18,201,575.64
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Solution
The fourth proportional to 29,968,430.52, 41,351,985.36 and 18,201,575.64 is: 25,115,472.39
Step by Step Solution
- Step 1: Write the proportion equation
29,968,430.52 : 41,351,985.36 = 18,201,575.64 : x - Step 2: Convert to fraction form
29,968,430.52/41,351,985.36 = 18,201,575.64/x - Step 3: Cross multiply
29,968,430.52x = 41,351,985.36 × 18,201,575.64 - Step 4: Simplify right side
29,968,430.52x = 752,671,289,394,212.62 - Step 5: Solve for x
x = 752,671,289,394,212.62/29,968,430.52 - Step 6: Final answer
x = 25,115,472.39
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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.