Finding the Fourth Proportional to 212,107,079.14, 318,160,987.77 and 66,551,810.82
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Solution
The fourth proportional to 212,107,079.14, 318,160,987.77 and 66,551,810.82 is: 99,827,832.03
Step by Step Solution
- Step 1: Write the proportion equation
212,107,079.14 : 318,160,987.77 = 66,551,810.82 : x - Step 2: Convert to fraction form
212,107,079.14/318,160,987.77 = 66,551,810.82/x - Step 3: Cross multiply
212,107,079.14x = 318,160,987.77 × 66,551,810.82 - Step 4: Simplify right side
212,107,079.14x = 21,174,189,868,373,372 - Step 5: Solve for x
x = 21,174,189,868,373,372/212,107,079.14 - Step 6: Final answer
x = 99,827,832.03
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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.