Finding the Fourth Proportional to 171,622,469.10, 257,433,703.65 and 79,506,029.10
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Solution
The fourth proportional to 171,622,469.10, 257,433,703.65 and 79,506,029.10 is: 119,259,043.65
Step by Step Solution
- Step 1: Write the proportion equation
171,622,469.10 : 257,433,703.65 = 79,506,029.10 : x - Step 2: Convert to fraction form
171,622,469.10/257,433,703.65 = 79,506,029.10/x - Step 3: Cross multiply
171,622,469.10x = 257,433,703.65 × 79,506,029.10 - Step 4: Simplify right side
171,622,469.10x = 20,467,531,533,717,676 - Step 5: Solve for x
x = 20,467,531,533,717,676/171,622,469.10 - Step 6: Final answer
x = 119,259,043.65
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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.