Finding the Fourth Proportional to 15,083,676.76, 20,825,887.98 and 14,119,997.08
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Solution
The fourth proportional to 15,083,676.76, 20,825,887.98 and 14,119,997.08 is: 19,495,344.68
Step by Step Solution
- Step 1: Write the proportion equation
15,083,676.76 : 20,825,887.98 = 14,119,997.08 : x - Step 2: Convert to fraction form
15,083,676.76/20,825,887.98 = 14,119,997.08/x - Step 3: Cross multiply
15,083,676.76x = 20,825,887.98 × 14,119,997.08 - Step 4: Simplify right side
15,083,676.76x = 294,061,477,466,007.12 - Step 5: Solve for x
x = 294,061,477,466,007.12/15,083,676.76 - Step 6: Final answer
x = 19,495,344.68
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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.