Finding the Fourth Proportional to 97,115,116.90, 145,672,675.35 and 66,504,115.30
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Solution
The fourth proportional to 97,115,116.90, 145,672,675.35 and 66,504,115.30 is: 99,756,172.95
Step by Step Solution
- Step 1: Write the proportion equation
97,115,116.90 : 145,672,675.35 = 66,504,115.30 : x - Step 2: Convert to fraction form
97,115,116.90/145,672,675.35 = 66,504,115.30/x - Step 3: Cross multiply
97,115,116.90x = 145,672,675.35 × 66,504,115.30 - Step 4: Simplify right side
97,115,116.90x = 9,687,832,397,535,868 - Step 5: Solve for x
x = 9,687,832,397,535,868/97,115,116.90 - Step 6: Final answer
x = 99,756,172.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.