Finding the Fourth Proportional to 412,614,125.10, 618,921,187.65 and 412,614,125.10
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Solution
The fourth proportional to 412,614,125.10, 618,921,187.65 and 412,614,125.10 is: 618,921,187.65
Step by Step Solution
- Step 1: Write the proportion equation
412,614,125.10 : 618,921,187.65 = 412,614,125.10 : x - Step 2: Convert to fraction form
412,614,125.10/618,921,187.65 = 412,614,125.10/x - Step 3: Cross multiply
412,614,125.10x = 618,921,187.65 × 412,614,125.10 - Step 4: Simplify right side
412,614,125.10x = 255,375,624,348,057,664 - Step 5: Solve for x
x = 255,375,624,348,057,664/412,614,125.10 - Step 6: Final answer
x = 618,921,187.65
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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.