Finding the Fourth Proportional to 738,178,702.30, 1,107,268,053.45 and 392,954,628.70
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Solution
The fourth proportional to 738,178,702.30, 1,107,268,053.45 and 392,954,628.70 is: 589,431,943.05
Step by Step Solution
- Step 1: Write the proportion equation
738,178,702.30 : 1,107,268,053.45 = 392,954,628.70 : x - Step 2: Convert to fraction form
738,178,702.30/1,107,268,053.45 = 392,954,628.70/x - Step 3: Cross multiply
738,178,702.30x = 1,107,268,053.45 × 392,954,628.70 - Step 4: Simplify right side
738,178,702.30x = 435,106,106,814,816,512 - Step 5: Solve for x
x = 435,106,106,814,816,512/738,178,702.30 - Step 6: Final answer
x = 589,431,943.05
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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.