Finding the Fourth Proportional to 83,896,348.80, 125,631,946.80 and 66,890,236.80
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Solution
The fourth proportional to 83,896,348.80, 125,631,946.80 and 66,890,236.80 is: 100,165,868.85
Step by Step Solution
- Step 1: Write the proportion equation
83,896,348.80 : 125,631,946.80 = 66,890,236.80 : x - Step 2: Convert to fraction form
83,896,348.80/125,631,946.80 = 66,890,236.80/x - Step 3: Cross multiply
83,896,348.80x = 125,631,946.80 × 66,890,236.80 - Step 4: Simplify right side
83,896,348.80x = 8,403,550,671,097,002 - Step 5: Solve for x
x = 8,403,550,671,097,002/83,896,348.80 - Step 6: Final answer
x = 100,165,868.85
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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.