Finding the Fourth Proportional to 139,968,135.10, 209,952,202.65 and 117,797,203.90
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Solution
The fourth proportional to 139,968,135.10, 209,952,202.65 and 117,797,203.90 is: 176,695,805.85
Step by Step Solution
- Step 1: Write the proportion equation
139,968,135.10 : 209,952,202.65 = 117,797,203.90 : x - Step 2: Convert to fraction form
139,968,135.10/209,952,202.65 = 117,797,203.90/x - Step 3: Cross multiply
139,968,135.10x = 209,952,202.65 × 117,797,203.90 - Step 4: Simplify right side
139,968,135.10x = 24,731,782,424,816,172 - Step 5: Solve for x
x = 24,731,782,424,816,172/139,968,135.10 - Step 6: Final answer
x = 176,695,805.85
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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.