Finding the Fourth Proportional to 263,115,273.12, 394,536,919.92 and 115,502,416.80
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Solution
The fourth proportional to 263,115,273.12, 394,536,919.92 and 115,502,416.80 is: 173,193,928.38
Step by Step Solution
- Step 1: Write the proportion equation
263,115,273.12 : 394,536,919.92 = 115,502,416.80 : x - Step 2: Convert to fraction form
263,115,273.12/394,536,919.92 = 115,502,416.80/x - Step 3: Cross multiply
263,115,273.12x = 394,536,919.92 × 115,502,416.80 - Step 4: Simplify right side
263,115,273.12x = 45,569,967,767,588,064 - Step 5: Solve for x
x = 45,569,967,767,588,064/263,115,273.12 - Step 6: Final answer
x = 173,193,928.38
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.