Finding the Fourth Proportional to 83,791,761.04, 115,630,814.68 and 48,511,052.74
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Solution
The fourth proportional to 83,791,761.04, 115,630,814.68 and 48,511,052.74 is: 66,944,201.67
Step by Step Solution
- Step 1: Write the proportion equation
83,791,761.04 : 115,630,814.68 = 48,511,052.74 : x - Step 2: Convert to fraction form
83,791,761.04/115,630,814.68 = 48,511,052.74/x - Step 3: Cross multiply
83,791,761.04x = 115,630,814.68 × 48,511,052.74 - Step 4: Simplify right side
83,791,761.04x = 5,609,372,549,310,647 - Step 5: Solve for x
x = 5,609,372,549,310,647/83,791,761.04 - Step 6: Final answer
x = 66,944,201.67
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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.