Finding the Fourth Proportional to 79,307,101.76, 118,933,703.12 and 27,479,609.78
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Solution
The fourth proportional to 79,307,101.76, 118,933,703.12 and 27,479,609.78 is: 41,210,076.76
Step by Step Solution
- Step 1: Write the proportion equation
79,307,101.76 : 118,933,703.12 = 27,479,609.78 : x - Step 2: Convert to fraction form
79,307,101.76/118,933,703.12 = 27,479,609.78/x - Step 3: Cross multiply
79,307,101.76x = 118,933,703.12 × 27,479,609.78 - Step 4: Simplify right side
79,307,101.76x = 3,268,251,750,901,999 - Step 5: Solve for x
x = 3,268,251,750,901,999/79,307,101.76 - Step 6: Final answer
x = 41,210,076.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.