Finding the Fourth Proportional to 78,805,117.80, 118,207,676.70 and 48,572,029.80
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Solution
The fourth proportional to 78,805,117.80, 118,207,676.70 and 48,572,029.80 is: 72,858,044.70
Step by Step Solution
- Step 1: Write the proportion equation
78,805,117.80 : 118,207,676.70 = 48,572,029.80 : x - Step 2: Convert to fraction form
78,805,117.80/118,207,676.70 = 48,572,029.80/x - Step 3: Cross multiply
78,805,117.80x = 118,207,676.70 × 48,572,029.80 - Step 4: Simplify right side
78,805,117.80x = 5,741,586,795,261,165 - Step 5: Solve for x
x = 5,741,586,795,261,165/78,805,117.80 - Step 6: Final answer
x = 72,858,044.70
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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.