Finding the Fourth Proportional to 288,747,578.82, 398,488,511.98 and 163,310,895.24
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Solution
The fourth proportional to 288,747,578.82, 398,488,511.98 and 163,310,895.24 is: 225,378,567.33
Step by Step Solution
- Step 1: Write the proportion equation
288,747,578.82 : 398,488,511.98 = 163,310,895.24 : x - Step 2: Convert to fraction form
288,747,578.82/398,488,511.98 = 163,310,895.24/x - Step 3: Cross multiply
288,747,578.82x = 398,488,511.98 × 163,310,895.24 - Step 4: Simplify right side
288,747,578.82x = 65,077,515,634,309,272 - Step 5: Solve for x
x = 65,077,515,634,309,272/288,747,578.82 - Step 6: Final answer
x = 225,378,567.33
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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.