Finding the Fourth Proportional to 69,826,832.80, 96,354,125.20 and 38,889,880.48
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Solution
The fourth proportional to 69,826,832.80, 96,354,125.20 and 38,889,880.48 is: 53,664,189.86
Step by Step Solution
- Step 1: Write the proportion equation
69,826,832.80 : 96,354,125.20 = 38,889,880.48 : x - Step 2: Convert to fraction form
69,826,832.80/96,354,125.20 = 38,889,880.48/x - Step 3: Cross multiply
69,826,832.80x = 96,354,125.20 × 38,889,880.48 - Step 4: Simplify right side
69,826,832.80x = 3,747,200,412,782,956 - Step 5: Solve for x
x = 3,747,200,412,782,956/69,826,832.80 - Step 6: Final answer
x = 53,664,189.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.