Finding the Fourth Proportional to 213,867,847.54, 320,750,405.94 and 98,741,776.42
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Solution
The fourth proportional to 213,867,847.54, 320,750,405.94 and 98,741,776.42 is: 148,088,949.48
Step by Step Solution
- Step 1: Write the proportion equation
213,867,847.54 : 320,750,405.94 = 98,741,776.42 : x - Step 2: Convert to fraction form
213,867,847.54/320,750,405.94 = 98,741,776.42/x - Step 3: Cross multiply
213,867,847.54x = 320,750,405.94 × 98,741,776.42 - Step 4: Simplify right side
213,867,847.54x = 31,671,464,869,951,720 - Step 5: Solve for x
x = 31,671,464,869,951,720/213,867,847.54 - Step 6: Final answer
x = 148,088,949.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.