Finding the Fourth Proportional to 2,657,448,277.10, 3,986,172,415.65 and 816,961,805.90
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Solution
The fourth proportional to 2,657,448,277.10, 3,986,172,415.65 and 816,961,805.90 is: 1,225,442,708.85
Step by Step Solution
- Step 1: Write the proportion equation
2,657,448,277.10 : 3,986,172,415.65 = 816,961,805.90 : x - Step 2: Convert to fraction form
2,657,448,277.10/3,986,172,415.65 = 816,961,805.90/x - Step 3: Cross multiply
2,657,448,277.10x = 3,986,172,415.65 × 816,961,805.90 - Step 4: Simplify right side
2,657,448,277.10x = 3,256,550,615,318,189,568 - Step 5: Solve for x
x = 3,256,550,615,318,189,568/2,657,448,277.10 - Step 6: Final answer
x = 1,225,442,708.85
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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.