Finding the Fourth Proportional to 11,117,977.92, 15,340,627.52 and 6,985,614.72
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Solution
The fourth proportional to 11,117,977.92, 15,340,627.52 and 6,985,614.72 is: 9,638,777.32
Step by Step Solution
- Step 1: Write the proportion equation
11,117,977.92 : 15,340,627.52 = 6,985,614.72 : x - Step 2: Convert to fraction form
11,117,977.92/15,340,627.52 = 6,985,614.72/x - Step 3: Cross multiply
11,117,977.92x = 15,340,627.52 × 6,985,614.72 - Step 4: Simplify right side
11,117,977.92x = 107,163,713,417,749.09 - Step 5: Solve for x
x = 107,163,713,417,749.09/11,117,977.92 - Step 6: Final answer
x = 9,638,777.32
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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.