Finding the Fourth Proportional to 117,876,069.97, 162,677,574.09 and 68,329,235.05
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Solution
The fourth proportional to 117,876,069.97, 162,677,574.09 and 68,329,235.05 is: 94,299,328.10
Step by Step Solution
- Step 1: Write the proportion equation
117,876,069.97 : 162,677,574.09 = 68,329,235.05 : x - Step 2: Convert to fraction form
117,876,069.97/162,677,574.09 = 68,329,235.05/x - Step 3: Cross multiply
117,876,069.97x = 162,677,574.09 × 68,329,235.05 - Step 4: Simplify right side
117,876,069.97x = 11,115,634,196,204,366 - Step 5: Solve for x
x = 11,115,634,196,204,366/117,876,069.97 - Step 6: Final answer
x = 94,299,328.10
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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.