Finding the Fourth Proportional to 11,342,249.79, 15,651,689.13 and 6,446,792.49
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Solution
The fourth proportional to 11,342,249.79, 15,651,689.13 and 6,446,792.49 is: 8,896,223.75
Step by Step Solution
- Step 1: Write the proportion equation
11,342,249.79 : 15,651,689.13 = 6,446,792.49 : x - Step 2: Convert to fraction form
11,342,249.79/15,651,689.13 = 6,446,792.49/x - Step 3: Cross multiply
11,342,249.79x = 15,651,689.13 × 6,446,792.49 - Step 4: Simplify right side
11,342,249.79x = 100,903,191,939,098.64 - Step 5: Solve for x
x = 100,903,191,939,098.64/11,342,249.79 - Step 6: Final answer
x = 8,896,223.75
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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.