Finding the Fourth Proportional to 29,379,796.48, 40,540,899.68 and 16,988,014.72
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Solution
The fourth proportional to 29,379,796.48, 40,540,899.68 and 16,988,014.72 is: 23,441,598.75
Step by Step Solution
- Step 1: Write the proportion equation
29,379,796.48 : 40,540,899.68 = 16,988,014.72 : x - Step 2: Convert to fraction form
29,379,796.48/40,540,899.68 = 16,988,014.72/x - Step 3: Cross multiply
29,379,796.48x = 40,540,899.68 × 16,988,014.72 - Step 4: Simplify right side
29,379,796.48x = 688,709,400,525,883.25 - Step 5: Solve for x
x = 688,709,400,525,883.25/29,379,796.48 - Step 6: Final answer
x = 23,441,598.75
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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.