Finding the Fourth Proportional to 129,084,578.14, 193,684,046.32 and 67,659,138.84
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Solution
The fourth proportional to 129,084,578.14, 193,684,046.32 and 67,659,138.84 is: 101,518,678.45
Step by Step Solution
- Step 1: Write the proportion equation
129,084,578.14 : 193,684,046.32 = 67,659,138.84 : x - Step 2: Convert to fraction form
129,084,578.14/193,684,046.32 = 67,659,138.84/x - Step 3: Cross multiply
129,084,578.14x = 193,684,046.32 × 67,659,138.84 - Step 4: Simplify right side
129,084,578.14x = 13,104,495,781,057,872 - Step 5: Solve for x
x = 13,104,495,781,057,872/129,084,578.14 - Step 6: Final answer
x = 101,518,678.45
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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.