Finding the Fourth Proportional to 90,795,537.20, 136,193,305.80 and 56,755,319.60
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Solution
The fourth proportional to 90,795,537.20, 136,193,305.80 and 56,755,319.60 is: 85,132,979.40
Step by Step Solution
- Step 1: Write the proportion equation
90,795,537.20 : 136,193,305.80 = 56,755,319.60 : x - Step 2: Convert to fraction form
90,795,537.20/136,193,305.80 = 56,755,319.60/x - Step 3: Cross multiply
90,795,537.20x = 136,193,305.80 × 56,755,319.60 - Step 4: Simplify right side
90,795,537.20x = 7,729,694,598,059,535 - Step 5: Solve for x
x = 7,729,694,598,059,535/90,795,537.20 - Step 6: Final answer
x = 85,132,979.40
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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.