Finding the Fourth Proportional to 139,968,272.20, 209,952,408.30 and 119,560,937.80
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Solution
The fourth proportional to 139,968,272.20, 209,952,408.30 and 119,560,937.80 is: 179,341,406.70
Step by Step Solution
- Step 1: Write the proportion equation
139,968,272.20 : 209,952,408.30 = 119,560,937.80 : x - Step 2: Convert to fraction form
139,968,272.20/209,952,408.30 = 119,560,937.80/x - Step 3: Cross multiply
139,968,272.20x = 209,952,408.30 × 119,560,937.80 - Step 4: Simplify right side
139,968,272.20x = 25,102,106,829,716,504 - Step 5: Solve for x
x = 25,102,106,829,716,504/139,968,272.20 - Step 6: Final answer
x = 179,341,406.70
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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.