Finding the Fourth Proportional to 105,169,398.12, 157,757,310.99 and 36,081,232.55
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Solution
The fourth proportional to 105,169,398.12, 157,757,310.99 and 36,081,232.55 is: 54,122,951.40
Step by Step Solution
- Step 1: Write the proportion equation
105,169,398.12 : 157,757,310.99 = 36,081,232.55 : x - Step 2: Convert to fraction form
105,169,398.12/157,757,310.99 = 36,081,232.55/x - Step 3: Cross multiply
105,169,398.12x = 157,757,310.99 × 36,081,232.55 - Step 4: Simplify right side
105,169,398.12x = 5,692,078,223,504,075 - Step 5: Solve for x
x = 5,692,078,223,504,075/105,169,398.12 - Step 6: Final answer
x = 54,122,951.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.