Finding the Fourth Proportional to 29,098,877.12, 40,155,571.68 and 16,046,129.60
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Solution
The fourth proportional to 29,098,877.12, 40,155,571.68 and 16,046,129.60 is: 22,143,174.28
Step by Step Solution
- Step 1: Write the proportion equation
29,098,877.12 : 40,155,571.68 = 16,046,129.60 : x - Step 2: Convert to fraction form
29,098,877.12/40,155,571.68 = 16,046,129.60/x - Step 3: Cross multiply
29,098,877.12x = 40,155,571.68 × 16,046,129.60 - Step 4: Simplify right side
29,098,877.12x = 644,341,507,339,369.75 - Step 5: Solve for x
x = 644,341,507,339,369.75/29,098,877.12 - Step 6: Final answer
x = 22,143,174.28
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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.