Finding the Fourth Proportional to 127,543,623.80, 191,315,435.70 and 102,034,455.80
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Solution
The fourth proportional to 127,543,623.80, 191,315,435.70 and 102,034,455.80 is: 153,051,683.70
Step by Step Solution
- Step 1: Write the proportion equation
127,543,623.80 : 191,315,435.70 = 102,034,455.80 : x - Step 2: Convert to fraction form
127,543,623.80/191,315,435.70 = 102,034,455.80/x - Step 3: Cross multiply
127,543,623.80x = 191,315,435.70 × 102,034,455.80 - Step 4: Simplify right side
127,543,623.80x = 19,520,766,367,789,392 - Step 5: Solve for x
x = 19,520,766,367,789,392/127,543,623.80 - Step 6: Final answer
x = 153,051,683.70
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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.