Finding the Fourth Proportional to 113,421,941.80, 170,132,912.70 and 107,449,973.80
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Solution
The fourth proportional to 113,421,941.80, 170,132,912.70 and 107,449,973.80 is: 161,174,960.70
Step by Step Solution
- Step 1: Write the proportion equation
113,421,941.80 : 170,132,912.70 = 107,449,973.80 : x - Step 2: Convert to fraction form
113,421,941.80/170,132,912.70 = 107,449,973.80/x - Step 3: Cross multiply
113,421,941.80x = 170,132,912.70 × 107,449,973.80 - Step 4: Simplify right side
113,421,941.80x = 18,280,777,012,132,684 - Step 5: Solve for x
x = 18,280,777,012,132,684/113,421,941.80 - Step 6: Final answer
x = 161,174,960.70
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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.