Finding the Fourth Proportional to 43,719,874.20, 65,579,811.30 and 20,995,291.80
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Solution
The fourth proportional to 43,719,874.20, 65,579,811.30 and 20,995,291.80 is: 31,492,937.70
Step by Step Solution
- Step 1: Write the proportion equation
43,719,874.20 : 65,579,811.30 = 20,995,291.80 : x - Step 2: Convert to fraction form
43,719,874.20/65,579,811.30 = 20,995,291.80/x - Step 3: Cross multiply
43,719,874.20x = 65,579,811.30 × 20,995,291.80 - Step 4: Simplify right side
43,719,874.20x = 1,376,867,274,432,437.25 - Step 5: Solve for x
x = 1,376,867,274,432,437.25/43,719,874.20 - Step 6: Final answer
x = 31,492,937.70
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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.