Finding the Fourth Proportional to 69,305,884.76, 95,642,876.78 and 38,366,570.72
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Solution
The fourth proportional to 69,305,884.76, 95,642,876.78 and 38,366,570.72 is: 52,946,285.99
Step by Step Solution
- Step 1: Write the proportion equation
69,305,884.76 : 95,642,876.78 = 38,366,570.72 : x - Step 2: Convert to fraction form
69,305,884.76/95,642,876.78 = 38,366,570.72/x - Step 3: Cross multiply
69,305,884.76x = 95,642,876.78 × 38,366,570.72 - Step 4: Simplify right side
69,305,884.76x = 3,669,489,195,174,069 - Step 5: Solve for x
x = 3,669,489,195,174,069/69,305,884.76 - Step 6: Final answer
x = 52,946,285.99
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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.