Finding the Fourth Proportional to 139,360,028.70, 209,040,043.05 and 48,483,617.70
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Solution
The fourth proportional to 139,360,028.70, 209,040,043.05 and 48,483,617.70 is: 72,725,426.55
Step by Step Solution
- Step 1: Write the proportion equation
139,360,028.70 : 209,040,043.05 = 48,483,617.70 : x - Step 2: Convert to fraction form
139,360,028.70/209,040,043.05 = 48,483,617.70/x - Step 3: Cross multiply
139,360,028.70x = 209,040,043.05 × 48,483,617.70 - Step 4: Simplify right side
139,360,028.70x = 10,135,017,531,227,744 - Step 5: Solve for x
x = 10,135,017,531,227,744/139,360,028.70 - Step 6: Final answer
x = 72,725,426.55
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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.