Finding the Fourth Proportional to 81,504,604.41, 122,230,968.78 and 26,907,024.21
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Solution
The fourth proportional to 81,504,604.41, 122,230,968.78 and 26,907,024.21 is: 40,351,973.49
Step by Step Solution
- Step 1: Write the proportion equation
81,504,604.41 : 122,230,968.78 = 26,907,024.21 : x - Step 2: Convert to fraction form
81,504,604.41/122,230,968.78 = 26,907,024.21/x - Step 3: Cross multiply
81,504,604.41x = 122,230,968.78 × 26,907,024.21 - Step 4: Simplify right side
81,504,604.41x = 3,288,871,636,175,214.50 - Step 5: Solve for x
x = 3,288,871,636,175,214.50/81,504,604.41 - Step 6: Final answer
x = 40,351,973.49
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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.