Finding the Fourth Proportional to 1,206,253,724.16, 1,664,701,245 and 908,370,414.84
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Solution
The fourth proportional to 1,206,253,724.16, 1,664,701,245 and 908,370,414.84 is: 1,253,604,718.66
Step by Step Solution
- Step 1: Write the proportion equation
1,206,253,724.16 : 1,664,701,245 = 908,370,414.84 : x - Step 2: Convert to fraction form
1,206,253,724.16/1,664,701,245 = 908,370,414.84/x - Step 3: Cross multiply
1,206,253,724.16x = 1,664,701,245 × 908,370,414.84 - Step 4: Simplify right side
1,206,253,724.16x = 1,512,165,360,505,314,560 - Step 5: Solve for x
x = 1,512,165,360,505,314,560/1,206,253,724.16 - Step 6: Final answer
x = 1,253,604,718.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.