Finding the Fourth Proportional to 83,414,671.20, 125,122,006.80 and 57,586,638.60
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Solution
The fourth proportional to 83,414,671.20, 125,122,006.80 and 57,586,638.60 is: 86,379,957.90
Step by Step Solution
- Step 1: Write the proportion equation
83,414,671.20 : 125,122,006.80 = 57,586,638.60 : x - Step 2: Convert to fraction form
83,414,671.20/125,122,006.80 = 57,586,638.60/x - Step 3: Cross multiply
83,414,671.20x = 125,122,006.80 × 57,586,638.60 - Step 4: Simplify right side
83,414,671.20x = 7,205,355,786,498,342 - Step 5: Solve for x
x = 7,205,355,786,498,342/83,414,671.20 - Step 6: Final answer
x = 86,379,957.90
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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.