Finding the Fourth Proportional to 242,720,638.97, 335,045,570.09 and 159,094,158.75
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Solution
The fourth proportional to 242,720,638.97, 335,045,570.09 and 159,094,158.75 is: 219,609,644.00
Step by Step Solution
- Step 1: Write the proportion equation
242,720,638.97 : 335,045,570.09 = 159,094,158.75 : x - Step 2: Convert to fraction form
242,720,638.97/335,045,570.09 = 159,094,158.75/x - Step 3: Cross multiply
242,720,638.97x = 335,045,570.09 × 159,094,158.75 - Step 4: Simplify right side
242,720,638.97x = 53,303,793,115,587,240 - Step 5: Solve for x
x = 53,303,793,115,587,240/242,720,638.97 - Step 6: Final answer
x = 219,609,644.00
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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.