Finding the Fourth Proportional to 1,266,121,732.64, 1,747,258,249.92 and 701,616,043.68
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Solution
The fourth proportional to 1,266,121,732.64, 1,747,258,249.92 and 701,616,043.68 is: 968,235,825.19
Step by Step Solution
- Step 1: Write the proportion equation
1,266,121,732.64 : 1,747,258,249.92 = 701,616,043.68 : x - Step 2: Convert to fraction form
1,266,121,732.64/1,747,258,249.92 = 701,616,043.68/x - Step 3: Cross multiply
1,266,121,732.64x = 1,747,258,249.92 × 701,616,043.68 - Step 4: Simplify right side
1,266,121,732.64x = 1,225,904,420,596,111,104 - Step 5: Solve for x
x = 1,225,904,420,596,111,104/1,266,121,732.64 - Step 6: Final answer
x = 968,235,825.19
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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.