Finding the Fourth Proportional to 112,353,862.18, 168,530,793.28 and 31,574,830.18
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Solution
The fourth proportional to 112,353,862.18, 168,530,793.28 and 31,574,830.18 is: 47,362,245.28
Step by Step Solution
- Step 1: Write the proportion equation
112,353,862.18 : 168,530,793.28 = 31,574,830.18 : x - Step 2: Convert to fraction form
112,353,862.18/168,530,793.28 = 31,574,830.18/x - Step 3: Cross multiply
112,353,862.18x = 168,530,793.28 × 31,574,830.18 - Step 4: Simplify right side
112,353,862.18x = 5,321,331,178,398,759 - Step 5: Solve for x
x = 5,321,331,178,398,759/112,353,862.18 - Step 6: Final answer
x = 47,362,245.28
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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.