Finding the Fourth Proportional to 77,327,431.80, 115,988,523.30 and 19,820,266.80
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Solution
The fourth proportional to 77,327,431.80, 115,988,523.30 and 19,820,266.80 is: 29,729,727.52
Step by Step Solution
- Step 1: Write the proportion equation
77,327,431.80 : 115,988,523.30 = 19,820,266.80 : x - Step 2: Convert to fraction form
77,327,431.80/115,988,523.30 = 19,820,266.80/x - Step 3: Cross multiply
77,327,431.80x = 115,988,523.30 × 19,820,266.80 - Step 4: Simplify right side
77,327,431.80x = 2,298,923,477,544,016.50 - Step 5: Solve for x
x = 2,298,923,477,544,016.50/77,327,431.80 - Step 6: Final answer
x = 29,729,727.52
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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.