Finding the Fourth Proportional to 8,168,149.30, 11,269,013.97 and 8,155,552.18
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Solution
The fourth proportional to 8,168,149.30, 11,269,013.97 and 8,155,552.18 is: 11,251,634.62
Step by Step Solution
- Step 1: Write the proportion equation
8,168,149.30 : 11,269,013.97 = 8,155,552.18 : x - Step 2: Convert to fraction form
8,168,149.30/11,269,013.97 = 8,155,552.18/x - Step 3: Cross multiply
8,168,149.30x = 11,269,013.97 × 8,155,552.18 - Step 4: Simplify right side
8,168,149.30x = 91,905,031,449,483.95 - Step 5: Solve for x
x = 91,905,031,449,483.95/8,168,149.30 - Step 6: Final answer
x = 11,251,634.62
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Double scale
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Similar ratio
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1.5x scale
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.