Finding the Fourth Proportional to 11,288,256.64, 15,578,083.96 and 6,131,913.28
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Solution
The fourth proportional to 11,288,256.64, 15,578,083.96 and 6,131,913.28 is: 8,462,197.75
Step by Step Solution
- Step 1: Write the proportion equation
11,288,256.64 : 15,578,083.96 = 6,131,913.28 : x - Step 2: Convert to fraction form
11,288,256.64/15,578,083.96 = 6,131,913.28/x - Step 3: Cross multiply
11,288,256.64x = 15,578,083.96 × 6,131,913.28 - Step 4: Simplify right side
11,288,256.64x = 95,523,459,911,279 - Step 5: Solve for x
x = 95,523,459,911,279/11,288,256.64 - Step 6: Final answer
x = 8,462,197.75
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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.