Finding the Fourth Proportional to 38,719,778, 53,436,416.84 and 22,201,439.40
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Solution
The fourth proportional to 38,719,778, 53,436,416.84 and 22,201,439.40 is: 30,639,777.18
Step by Step Solution
- Step 1: Write the proportion equation
38,719,778 : 53,436,416.84 = 22,201,439.40 : x - Step 2: Convert to fraction form
38,719,778/53,436,416.84 = 22,201,439.40/x - Step 3: Cross multiply
38,719,778x = 53,436,416.84 × 22,201,439.40 - Step 4: Simplify right side
38,719,778x = 1,186,365,370,226,399.50 - Step 5: Solve for x
x = 1,186,365,370,226,399.50/38,719,778 - Step 6: Final answer
x = 30,639,777.18
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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.