Finding the Fourth Proportional to 30,522,692.13, 42,121,305.45 and 16,772,541.99
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Solution
The fourth proportional to 30,522,692.13, 42,121,305.45 and 16,772,541.99 is: 23,146,102.62
Step by Step Solution
- Step 1: Write the proportion equation
30,522,692.13 : 42,121,305.45 = 16,772,541.99 : x - Step 2: Convert to fraction form
30,522,692.13/42,121,305.45 = 16,772,541.99/x - Step 3: Cross multiply
30,522,692.13x = 42,121,305.45 × 16,772,541.99 - Step 4: Simplify right side
30,522,692.13x = 706,481,364,333,740.88 - Step 5: Solve for x
x = 706,481,364,333,740.88/30,522,692.13 - Step 6: Final answer
x = 23,146,102.62
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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.