Finding the Fourth Proportional to 145,961,563.20, 201,427,035.72 and 79,882,022.80
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Solution
The fourth proportional to 145,961,563.20, 201,427,035.72 and 79,882,022.80 is: 110,237,234.43
Step by Step Solution
- Step 1: Write the proportion equation
145,961,563.20 : 201,427,035.72 = 79,882,022.80 : x - Step 2: Convert to fraction form
145,961,563.20/201,427,035.72 = 79,882,022.80/x - Step 3: Cross multiply
145,961,563.20x = 201,427,035.72 × 79,882,022.80 - Step 4: Simplify right side
145,961,563.20x = 16,090,399,059,921,454 - Step 5: Solve for x
x = 16,090,399,059,921,454/145,961,563.20 - Step 6: Final answer
x = 110,237,234.43
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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.