Finding the Fourth Proportional to 125,428,649.80, 188,142,974.70 and 125,428,649.80
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Solution
The fourth proportional to 125,428,649.80, 188,142,974.70 and 125,428,649.80 is: 188,142,974.70
Step by Step Solution
- Step 1: Write the proportion equation
125,428,649.80 : 188,142,974.70 = 125,428,649.80 : x - Step 2: Convert to fraction form
125,428,649.80/188,142,974.70 = 125,428,649.80/x - Step 3: Cross multiply
125,428,649.80x = 188,142,974.70 × 125,428,649.80 - Step 4: Simplify right side
125,428,649.80x = 23,598,519,285,976,560 - Step 5: Solve for x
x = 23,598,519,285,976,560/125,428,649.80 - Step 6: Final answer
x = 188,142,974.70
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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.