Finding the Fourth Proportional to 783,040,634.63, 1,080,290,238.84 and 448,334,276.57
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Solution
The fourth proportional to 783,040,634.63, 1,080,290,238.84 and 448,334,276.57 is: 618,526,193.02
Step by Step Solution
- Step 1: Write the proportion equation
783,040,634.63 : 1,080,290,238.84 = 448,334,276.57 : x - Step 2: Convert to fraction form
783,040,634.63/1,080,290,238.84 = 448,334,276.57/x - Step 3: Cross multiply
783,040,634.63x = 1,080,290,238.84 × 448,334,276.57 - Step 4: Simplify right side
783,040,634.63x = 484,331,142,715,963,840 - Step 5: Solve for x
x = 484,331,142,715,963,840/783,040,634.63 - Step 6: Final answer
x = 618,526,193.02
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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.