Finding the Fourth Proportional to 98,457,958.79, 135,879,728.48 and 56,073,310.38
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Solution
The fourth proportional to 98,457,958.79, 135,879,728.48 and 56,073,310.38 is: 77,385,579.42
Step by Step Solution
- Step 1: Write the proportion equation
98,457,958.79 : 135,879,728.48 = 56,073,310.38 : x - Step 2: Convert to fraction form
98,457,958.79/135,879,728.48 = 56,073,310.38/x - Step 3: Cross multiply
98,457,958.79x = 135,879,728.48 × 56,073,310.38 - Step 4: Simplify right side
98,457,958.79x = 7,619,226,189,748,864 - Step 5: Solve for x
x = 7,619,226,189,748,864/98,457,958.79 - Step 6: Final answer
x = 77,385,579.42
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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.