Finding the Fourth Proportional to 37,961,692.61, 52,386,861.98 and 20,557,634.09
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Solution
The fourth proportional to 37,961,692.61, 52,386,861.98 and 20,557,634.09 is: 28,369,386.76
Step by Step Solution
- Step 1: Write the proportion equation
37,961,692.61 : 52,386,861.98 = 20,557,634.09 : x - Step 2: Convert to fraction form
37,961,692.61/52,386,861.98 = 20,557,634.09/x - Step 3: Cross multiply
37,961,692.61x = 52,386,861.98 × 20,557,634.09 - Step 4: Simplify right side
37,961,692.61x = 1,076,949,939,497,632.75 - Step 5: Solve for x
x = 1,076,949,939,497,632.75/37,961,692.61 - Step 6: Final answer
x = 28,369,386.76
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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.