Finding the Fourth Proportional to 201,854,311.90, 278,559,072.45 and 109,034,860.75
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Solution
The fourth proportional to 201,854,311.90, 278,559,072.45 and 109,034,860.75 is: 150,468,173.75
Step by Step Solution
- Step 1: Write the proportion equation
201,854,311.90 : 278,559,072.45 = 109,034,860.75 : x - Step 2: Convert to fraction form
201,854,311.90/278,559,072.45 = 109,034,860.75/x - Step 3: Cross multiply
201,854,311.90x = 278,559,072.45 × 109,034,860.75 - Step 4: Simplify right side
201,854,311.90x = 30,372,649,675,234,912 - Step 5: Solve for x
x = 30,372,649,675,234,912/201,854,311.90 - Step 6: Final answer
x = 150,468,173.75
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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.