Finding the Fourth Proportional to 756,682,913.80, 1,135,024,370.70 and 211,424,447.80
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Solution
The fourth proportional to 756,682,913.80, 1,135,024,370.70 and 211,424,447.80 is: 317,136,671.70
Step by Step Solution
- Step 1: Write the proportion equation
756,682,913.80 : 1,135,024,370.70 = 211,424,447.80 : x - Step 2: Convert to fraction form
756,682,913.80/1,135,024,370.70 = 211,424,447.80/x - Step 3: Cross multiply
756,682,913.80x = 1,135,024,370.70 × 211,424,447.80 - Step 4: Simplify right side
756,682,913.80x = 239,971,900,814,790,016 - Step 5: Solve for x
x = 239,971,900,814,790,016/756,682,913.80 - Step 6: Final answer
x = 317,136,671.70
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1.5x scale
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.