Finding the Fourth Proportional to 28,462,893.75, 39,275,779.42 and 16,072,236.12
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Solution
The fourth proportional to 28,462,893.75, 39,275,779.42 and 16,072,236.12 is: 22,177,983.94
Step by Step Solution
- Step 1: Write the proportion equation
28,462,893.75 : 39,275,779.42 = 16,072,236.12 : x - Step 2: Convert to fraction form
28,462,893.75/39,275,779.42 = 16,072,236.12/x - Step 3: Cross multiply
28,462,893.75x = 39,275,779.42 × 16,072,236.12 - Step 4: Simplify right side
28,462,893.75x = 631,249,600,491,270.38 - Step 5: Solve for x
x = 631,249,600,491,270.38/28,462,893.75 - Step 6: Final answer
x = 22,177,983.94
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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.