Finding the Fourth Proportional to 377,964,495.95, 521,622,054.05 and 208,451,886.08
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Solution
The fourth proportional to 377,964,495.95, 521,622,054.05 and 208,451,886.08 is: 287,680,727.03
Step by Step Solution
- Step 1: Write the proportion equation
377,964,495.95 : 521,622,054.05 = 208,451,886.08 : x - Step 2: Convert to fraction form
377,964,495.95/521,622,054.05 = 208,451,886.08/x - Step 3: Cross multiply
377,964,495.95x = 521,622,054.05 × 208,451,886.08 - Step 4: Simplify right side
377,964,495.95x = 108,733,100,983,995,824 - Step 5: Solve for x
x = 108,733,100,983,995,824/377,964,495.95 - Step 6: Final answer
x = 287,680,727.03
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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.