Finding the Fourth Proportional to 206,581,905.20, 285,073,833.12 and 118,412,693.84
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Solution
The fourth proportional to 206,581,905.20, 285,073,833.12 and 118,412,693.84 is: 163,404,246.32
Step by Step Solution
- Step 1: Write the proportion equation
206,581,905.20 : 285,073,833.12 = 118,412,693.84 : x - Step 2: Convert to fraction form
206,581,905.20/285,073,833.12 = 118,412,693.84/x - Step 3: Cross multiply
206,581,905.20x = 285,073,833.12 × 118,412,693.84 - Step 4: Simplify right side
206,581,905.20x = 33,756,360,523,033,812 - Step 5: Solve for x
x = 33,756,360,523,033,812/206,581,905.20 - Step 6: Final answer
x = 163,404,246.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.