Finding the Fourth Proportional to 268,585,784.75, 402,878,642.81 and 74,497,198.97
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Solution
The fourth proportional to 268,585,784.75, 402,878,642.81 and 74,497,198.97 is: 111,745,788.94
Step by Step Solution
- Step 1: Write the proportion equation
268,585,784.75 : 402,878,642.81 = 74,497,198.97 : x - Step 2: Convert to fraction form
268,585,784.75/402,878,642.81 = 74,497,198.97/x - Step 3: Cross multiply
268,585,784.75x = 402,878,642.81 × 74,497,198.97 - Step 4: Simplify right side
268,585,784.75x = 30,013,330,414,814,840 - Step 5: Solve for x
x = 30,013,330,414,814,840/268,585,784.75 - Step 6: Final answer
x = 111,745,788.94
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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.