Finding the Fourth Proportional to 21,735,846.72, 29,995,778.88 and 11,947,195.92
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Solution
The fourth proportional to 21,735,846.72, 29,995,778.88 and 11,947,195.92 is: 16,487,300.99
Step by Step Solution
- Step 1: Write the proportion equation
21,735,846.72 : 29,995,778.88 = 11,947,195.92 : x - Step 2: Convert to fraction form
21,735,846.72/29,995,778.88 = 11,947,195.92/x - Step 3: Cross multiply
21,735,846.72x = 29,995,778.88 × 11,947,195.92 - Step 4: Simplify right side
21,735,846.72x = 358,365,447,052,358.12 - Step 5: Solve for x
x = 358,365,447,052,358.12/21,735,846.72 - Step 6: Final answer
x = 16,487,300.99
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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.