Finding the Fourth Proportional to 30,858,790.97, 42,584,643.99 and 16,920,260.68
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Solution
The fourth proportional to 30,858,790.97, 42,584,643.99 and 16,920,260.68 is: 23,349,692.41
Step by Step Solution
- Step 1: Write the proportion equation
30,858,790.97 : 42,584,643.99 = 16,920,260.68 : x - Step 2: Convert to fraction form
30,858,790.97/42,584,643.99 = 16,920,260.68/x - Step 3: Cross multiply
30,858,790.97x = 42,584,643.99 × 16,920,260.68 - Step 4: Simplify right side
30,858,790.97x = 720,543,277,275,795.38 - Step 5: Solve for x
x = 720,543,277,275,795.38/30,858,790.97 - Step 6: Final answer
x = 23,349,692.41
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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.