Finding the Fourth Proportional to 79,719,370.81, 119,579,057.66 and 19,135,096.81
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Solution
The fourth proportional to 79,719,370.81, 119,579,057.66 and 19,135,096.81 is: 28,702,645.57
Step by Step Solution
- Step 1: Write the proportion equation
79,719,370.81 : 119,579,057.66 = 19,135,096.81 : x - Step 2: Convert to fraction form
79,719,370.81/119,579,057.66 = 19,135,096.81/x - Step 3: Cross multiply
79,719,370.81x = 119,579,057.66 × 19,135,096.81 - Step 4: Simplify right side
79,719,370.81x = 2,288,156,845,194,194 - Step 5: Solve for x
x = 2,288,156,845,194,194/79,719,370.81 - Step 6: Final answer
x = 28,702,645.57
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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.