Finding the Fourth Proportional to 8,201,942.80, 12,302,914.20 and 3,418,973.80
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Solution
The fourth proportional to 8,201,942.80, 12,302,914.20 and 3,418,973.80 is: 5,128,460.70
Step by Step Solution
- Step 1: Write the proportion equation
8,201,942.80 : 12,302,914.20 = 3,418,973.80 : x - Step 2: Convert to fraction form
8,201,942.80/12,302,914.20 = 3,418,973.80/x - Step 3: Cross multiply
8,201,942.80x = 12,302,914.20 × 3,418,973.80 - Step 4: Simplify right side
8,201,942.80x = 42,063,341,313,447.95 - Step 5: Solve for x
x = 42,063,341,313,447.95/8,201,942.80 - Step 6: Final answer
x = 5,128,460.70
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1.5x scale
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.