Finding the Fourth Proportional to 38,719,779, 53,436,418.22 and 22,201,440.40
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Solution
The fourth proportional to 38,719,779, 53,436,418.22 and 22,201,440.40 is: 30,639,778.56
Step by Step Solution
- Step 1: Write the proportion equation
38,719,779 : 53,436,418.22 = 22,201,440.40 : x - Step 2: Convert to fraction form
38,719,779/53,436,418.22 = 22,201,440.40/x - Step 3: Cross multiply
38,719,779x = 53,436,418.22 × 22,201,440.40 - Step 4: Simplify right side
38,719,779x = 1,186,365,454,300,804 - Step 5: Solve for x
x = 1,186,365,454,300,804/38,719,779 - Step 6: Final answer
x = 30,639,778.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.