Finding the Fourth Proportional to 8,939,660,145,817.20, 13,409,490,203,682 and 2,148,112,385,751.20
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Solution
The fourth proportional to 8,939,660,145,817.20, 13,409,490,203,682 and 2,148,112,385,751.20 is: 3,222,168,575,011.92
Step by Step Solution
- Step 1: Write the proportion equation
8,939,660,145,817.20 : 13,409,490,203,682 = 2,148,112,385,751.20 : x - Step 2: Convert to fraction form
8,939,660,145,817.20/13,409,490,203,682 = 2,148,112,385,751.20/x - Step 3: Cross multiply
8,939,660,145,817.20x = 13,409,490,203,682 × 2,148,112,385,751.20 - Step 4: Simplify right side
8,939,660,145,817.20x = 28,805,091,993,138,683,157,938,176 - Step 5: Solve for x
x = 28,805,091,993,138,683,157,938,176/8,939,660,145,817.20 - Step 6: Final answer
x = 3,222,168,575,011.92
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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.