Finding the Fourth Proportional to 136,526,742.12, 188,406,920.10 and 74,647,122.60
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Solution
The fourth proportional to 136,526,742.12, 188,406,920.10 and 74,647,122.60 is: 103,013,037.92
Step by Step Solution
- Step 1: Write the proportion equation
136,526,742.12 : 188,406,920.10 = 74,647,122.60 : x - Step 2: Convert to fraction form
136,526,742.12/188,406,920.10 = 74,647,122.60/x - Step 3: Cross multiply
136,526,742.12x = 188,406,920.10 × 74,647,122.60 - Step 4: Simplify right side
136,526,742.12x = 14,064,034,463,393,102 - Step 5: Solve for x
x = 14,064,034,463,393,102/136,526,742.12 - Step 6: Final answer
x = 103,013,037.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.