Finding the Fourth Proportional to 84,081,811.70, 126,122,717.55 and 84,081,811.70
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Solution
The fourth proportional to 84,081,811.70, 126,122,717.55 and 84,081,811.70 is: 126,122,717.55
Step by Step Solution
- Step 1: Write the proportion equation
84,081,811.70 : 126,122,717.55 = 84,081,811.70 : x - Step 2: Convert to fraction form
84,081,811.70/126,122,717.55 = 84,081,811.70/x - Step 3: Cross multiply
84,081,811.70x = 126,122,717.55 × 84,081,811.70 - Step 4: Simplify right side
84,081,811.70x = 10,604,626,588,131,386 - Step 5: Solve for x
x = 10,604,626,588,131,386/84,081,811.70 - Step 6: Final answer
x = 126,122,717.55
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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.