Finding the Fourth Proportional to 777,179,099.36, 1,165,773,659.84 and 310,879,478.72
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Solution
The fourth proportional to 777,179,099.36, 1,165,773,659.84 and 310,879,478.72 is: 466,321,222.45
Step by Step Solution
- Step 1: Write the proportion equation
777,179,099.36 : 1,165,773,659.84 = 310,879,478.72 : x - Step 2: Convert to fraction form
777,179,099.36/1,165,773,659.84 = 310,879,478.72/x - Step 3: Cross multiply
777,179,099.36x = 1,165,773,659.84 × 310,879,478.72 - Step 4: Simplify right side
777,179,099.36x = 362,415,107,676,565,824 - Step 5: Solve for x
x = 362,415,107,676,565,824/777,179,099.36 - Step 6: Final answer
x = 466,321,222.45
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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.