Finding the Fourth Proportional to 190,605,457.62, 286,029,110.12 and 81,431,449.97
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Solution
The fourth proportional to 190,605,457.62, 286,029,110.12 and 81,431,449.97 is: 122,198,836.59
Step by Step Solution
- Step 1: Write the proportion equation
190,605,457.62 : 286,029,110.12 = 81,431,449.97 : x - Step 2: Convert to fraction form
190,605,457.62/286,029,110.12 = 81,431,449.97/x - Step 3: Cross multiply
190,605,457.62x = 286,029,110.12 × 81,431,449.97 - Step 4: Simplify right side
190,605,457.62x = 23,291,765,168,863,100 - Step 5: Solve for x
x = 23,291,765,168,863,100/190,605,457.62 - Step 6: Final answer
x = 122,198,836.59
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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.