Finding the Fourth Proportional to 1,358,395,399.26, 1,874,574,382.32 and 763,682,534.58
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Solution
The fourth proportional to 1,358,395,399.26, 1,874,574,382.32 and 763,682,534.58 is: 1,053,875,562.54
Step by Step Solution
- Step 1: Write the proportion equation
1,358,395,399.26 : 1,874,574,382.32 = 763,682,534.58 : x - Step 2: Convert to fraction form
1,358,395,399.26/1,874,574,382.32 = 763,682,534.58/x - Step 3: Cross multiply
1,358,395,399.26x = 1,874,574,382.32 × 763,682,534.58 - Step 4: Simplify right side
1,358,395,399.26x = 1,431,579,715,548,875,520 - Step 5: Solve for x
x = 1,431,579,715,548,875,520/1,358,395,399.26 - Step 6: Final answer
x = 1,053,875,562.54
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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.