Finding the Fourth Proportional to 100,382,023.80, 150,573,035.70 and 74,872,855.80
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Solution
The fourth proportional to 100,382,023.80, 150,573,035.70 and 74,872,855.80 is: 112,309,283.70
Step by Step Solution
- Step 1: Write the proportion equation
100,382,023.80 : 150,573,035.70 = 74,872,855.80 : x - Step 2: Convert to fraction form
100,382,023.80/150,573,035.70 = 74,872,855.80/x - Step 3: Cross multiply
100,382,023.80x = 150,573,035.70 × 74,872,855.80 - Step 4: Simplify right side
100,382,023.80x = 11,273,833,189,334,350 - Step 5: Solve for x
x = 11,273,833,189,334,350/100,382,023.80 - Step 6: Final answer
x = 112,309,283.70
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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.