Finding the Fourth Proportional to 165,888,121.20, 248,832,181.80 and 149,166,610.80
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Solution
The fourth proportional to 165,888,121.20, 248,832,181.80 and 149,166,610.80 is: 223,749,916.20
Step by Step Solution
- Step 1: Write the proportion equation
165,888,121.20 : 248,832,181.80 = 149,166,610.80 : x - Step 2: Convert to fraction form
165,888,121.20/248,832,181.80 = 149,166,610.80/x - Step 3: Cross multiply
165,888,121.20x = 248,832,181.80 × 149,166,610.80 - Step 4: Simplify right side
165,888,121.20x = 37,117,453,217,075,448 - Step 5: Solve for x
x = 37,117,453,217,075,448/165,888,121.20 - Step 6: Final answer
x = 223,749,916.20
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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.