Finding the Fourth Proportional to 98,119,161.29, 135,407,330.90 and 54,068,997.68
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Solution
The fourth proportional to 98,119,161.29, 135,407,330.90 and 54,068,997.68 is: 74,616,808.42
Step by Step Solution
- Step 1: Write the proportion equation
98,119,161.29 : 135,407,330.90 = 54,068,997.68 : x - Step 2: Convert to fraction form
98,119,161.29/135,407,330.90 = 54,068,997.68/x - Step 3: Cross multiply
98,119,161.29x = 135,407,330.90 × 54,068,997.68 - Step 4: Simplify right side
98,119,161.29x = 7,321,338,660,050,518 - Step 5: Solve for x
x = 7,321,338,660,050,518/98,119,161.29 - Step 6: Final answer
x = 74,616,808.42
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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.