Finding the Fourth Proportional to 43,716,208.80, 65,574,313.20 and 13,420,135.20
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Solution
The fourth proportional to 43,716,208.80, 65,574,313.20 and 13,420,135.20 is: 20,130,202.80
Step by Step Solution
- Step 1: Write the proportion equation
43,716,208.80 : 65,574,313.20 = 13,420,135.20 : x - Step 2: Convert to fraction form
43,716,208.80/65,574,313.20 = 13,420,135.20/x - Step 3: Cross multiply
43,716,208.80x = 65,574,313.20 × 13,420,135.20 - Step 4: Simplify right side
43,716,208.80x = 880,016,148,791,144.62 - Step 5: Solve for x
x = 880,016,148,791,144.62/43,716,208.80 - Step 6: Final answer
x = 20,130,202.80
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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.