Finding the Fourth Proportional to 129,347,533.80, 194,021,300.70 and 129,347,533.80
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Solution
The fourth proportional to 129,347,533.80, 194,021,300.70 and 129,347,533.80 is: 194,021,300.70
Step by Step Solution
- Step 1: Write the proportion equation
129,347,533.80 : 194,021,300.70 = 129,347,533.80 : x - Step 2: Convert to fraction form
129,347,533.80/194,021,300.70 = 129,347,533.80/x - Step 3: Cross multiply
129,347,533.80x = 194,021,300.70 × 129,347,533.80 - Step 4: Simplify right side
129,347,533.80x = 25,096,176,750,213,212 - Step 5: Solve for x
x = 25,096,176,750,213,212/129,347,533.80 - Step 6: Final answer
x = 194,021,300.70
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1.5x scale
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.