Finding the Fourth Proportional to 27,720,369.70, 41,580,554.55 and 7,528,113.70
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Solution
The fourth proportional to 27,720,369.70, 41,580,554.55 and 7,528,113.70 is: 11,292,170.55
Step by Step Solution
- Step 1: Write the proportion equation
27,720,369.70 : 41,580,554.55 = 7,528,113.70 : x - Step 2: Convert to fraction form
27,720,369.70/41,580,554.55 = 7,528,113.70/x - Step 3: Cross multiply
27,720,369.70x = 41,580,554.55 × 7,528,113.70 - Step 4: Simplify right side
27,720,369.70x = 313,023,142,361,452.31 - Step 5: Solve for x
x = 313,023,142,361,452.31/27,720,369.70 - Step 6: Final answer
x = 11,292,170.55
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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.