Finding the Fourth Proportional to 138,082,210.98, 190,553,060.43 and 76,202,107.08
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Solution
The fourth proportional to 138,082,210.98, 190,553,060.43 and 76,202,107.08 is: 105,158,692.15
Step by Step Solution
- Step 1: Write the proportion equation
138,082,210.98 : 190,553,060.43 = 76,202,107.08 : x - Step 2: Convert to fraction form
138,082,210.98/190,553,060.43 = 76,202,107.08/x - Step 3: Cross multiply
138,082,210.98x = 190,553,060.43 × 76,202,107.08 - Step 4: Simplify right side
138,082,210.98x = 14,520,544,715,308,572 - Step 5: Solve for x
x = 14,520,544,715,308,572/138,082,210.98 - Step 6: Final answer
x = 105,158,692.15
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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.