Finding the Fourth Proportional to 20,269,795.24, 27,971,971.86 and 10,977,289.90
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Solution
The fourth proportional to 20,269,795.24, 27,971,971.86 and 10,977,289.90 is: 15,148,472.91
Step by Step Solution
- Step 1: Write the proportion equation
20,269,795.24 : 27,971,971.86 = 10,977,289.90 : x - Step 2: Convert to fraction form
20,269,795.24/27,971,971.86 = 10,977,289.90/x - Step 3: Cross multiply
20,269,795.24x = 27,971,971.86 × 10,977,289.90 - Step 4: Simplify right side
20,269,795.24x = 307,056,444,181,862.19 - Step 5: Solve for x
x = 307,056,444,181,862.19/20,269,795.24 - Step 6: Final answer
x = 15,148,472.91
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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.