Finding the Fourth Proportional to 165,888,122.20, 248,832,183.30 and 155,802,131.80
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Solution
The fourth proportional to 165,888,122.20, 248,832,183.30 and 155,802,131.80 is: 233,703,197.70
Step by Step Solution
- Step 1: Write the proportion equation
165,888,122.20 : 248,832,183.30 = 155,802,131.80 : x - Step 2: Convert to fraction form
165,888,122.20/248,832,183.30 = 155,802,131.80/x - Step 3: Cross multiply
165,888,122.20x = 248,832,183.30 × 155,802,131.80 - Step 4: Simplify right side
165,888,122.20x = 38,768,584,618,588,360 - Step 5: Solve for x
x = 38,768,584,618,588,360/165,888,122.20 - Step 6: Final answer
x = 233,703,197.70
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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.