Finding the Fourth Proportional to 84,516,042.78, 126,786,101.49 and 26,228,756.70
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Solution
The fourth proportional to 84,516,042.78, 126,786,101.49 and 26,228,756.70 is: 39,346,870.72
Step by Step Solution
- Step 1: Write the proportion equation
84,516,042.78 : 126,786,101.49 = 26,228,756.70 : x - Step 2: Convert to fraction form
84,516,042.78/126,786,101.49 = 26,228,756.70/x - Step 3: Cross multiply
84,516,042.78x = 126,786,101.49 × 26,228,756.70 - Step 4: Simplify right side
84,516,042.78x = 3,325,441,808,922,717 - Step 5: Solve for x
x = 3,325,441,808,922,717/84,516,042.78 - Step 6: Final answer
x = 39,346,870.72
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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.