Finding the Fourth Proportional to 84,253,670.10, 126,380,505.15 and 71,339,653.80
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Solution
The fourth proportional to 84,253,670.10, 126,380,505.15 and 71,339,653.80 is: 107,009,480.70
Step by Step Solution
- Step 1: Write the proportion equation
84,253,670.10 : 126,380,505.15 = 71,339,653.80 : x - Step 2: Convert to fraction form
84,253,670.10/126,380,505.15 = 71,339,653.80/x - Step 3: Cross multiply
84,253,670.10x = 126,380,505.15 × 71,339,653.80 - Step 4: Simplify right side
84,253,670.10x = 9,015,941,484,470,118 - Step 5: Solve for x
x = 9,015,941,484,470,118/84,253,670.10 - Step 6: Final answer
x = 107,009,480.70
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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.