Finding the Fourth Proportional to 21,971,071.76, 32,975,581.08 and 15,244,209.68
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Solution
The fourth proportional to 21,971,071.76, 32,975,581.08 and 15,244,209.68 is: 22,879,478.88
Step by Step Solution
- Step 1: Write the proportion equation
21,971,071.76 : 32,975,581.08 = 15,244,209.68 : x - Step 2: Convert to fraction form
21,971,071.76/32,975,581.08 = 15,244,209.68/x - Step 3: Cross multiply
21,971,071.76x = 32,975,581.08 × 15,244,209.68 - Step 4: Simplify right side
21,971,071.76x = 502,686,672,303,360.81 - Step 5: Solve for x
x = 502,686,672,303,360.81/21,971,071.76 - Step 6: Final answer
x = 22,879,478.88
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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.