Finding the Fourth Proportional to 73,418,839.80, 110,128,259.70 and 61,474,903.80
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Solution
The fourth proportional to 73,418,839.80, 110,128,259.70 and 61,474,903.80 is: 92,212,355.70
Step by Step Solution
- Step 1: Write the proportion equation
73,418,839.80 : 110,128,259.70 = 61,474,903.80 : x - Step 2: Convert to fraction form
73,418,839.80/110,128,259.70 = 61,474,903.80/x - Step 3: Cross multiply
73,418,839.80x = 110,128,259.70 × 61,474,903.80 - Step 4: Simplify right side
73,418,839.80x = 6,770,124,170,718,917 - Step 5: Solve for x
x = 6,770,124,170,718,917/73,418,839.80 - Step 6: Final answer
x = 92,212,355.70
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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.