Finding the Fourth Proportional to 275,720,353.60, 413,155,377.60 and 239,157,212.80
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Solution
The fourth proportional to 275,720,353.60, 413,155,377.60 and 239,157,212.80 is: 358,367,045.70
Step by Step Solution
- Step 1: Write the proportion equation
275,720,353.60 : 413,155,377.60 = 239,157,212.80 : x - Step 2: Convert to fraction form
275,720,353.60/413,155,377.60 = 239,157,212.80/x - Step 3: Cross multiply
275,720,353.60x = 413,155,377.60 × 239,157,212.80 - Step 4: Simplify right side
275,720,353.60x = 98,809,088,560,147,568 - Step 5: Solve for x
x = 98,809,088,560,147,568/275,720,353.60 - Step 6: Final answer
x = 358,367,045.70
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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.