Finding the Fourth Proportional to 138,480,618.96, 207,537,452.28 and 73,644,814.80
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Solution
The fourth proportional to 138,480,618.96, 207,537,452.28 and 73,644,814.80 is: 110,369,648.49
Step by Step Solution
- Step 1: Write the proportion equation
138,480,618.96 : 207,537,452.28 = 73,644,814.80 : x - Step 2: Convert to fraction form
138,480,618.96/207,537,452.28 = 73,644,814.80/x - Step 3: Cross multiply
138,480,618.96x = 207,537,452.28 × 73,644,814.80 - Step 4: Simplify right side
138,480,618.96x = 15,284,057,237,224,438 - Step 5: Solve for x
x = 15,284,057,237,224,438/138,480,618.96 - Step 6: Final answer
x = 110,369,648.49
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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.