Finding the Fourth Proportional to 8,939,660,145,820.80, 13,409,490,203,688 and 2,148,112,385,755.20
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Solution
The fourth proportional to 8,939,660,145,820.80, 13,409,490,203,688 and 2,148,112,385,755.20 is: 3,222,168,575,018.07
Step by Step Solution
- Step 1: Write the proportion equation
8,939,660,145,820.80 : 13,409,490,203,688 = 2,148,112,385,755.20 : x - Step 2: Convert to fraction form
8,939,660,145,820.80/13,409,490,203,688 = 2,148,112,385,755.20/x - Step 3: Cross multiply
8,939,660,145,820.80x = 13,409,490,203,688 × 2,148,112,385,755.20 - Step 4: Simplify right side
8,939,660,145,820.80x = 28,805,091,993,205,212,201,353,216 - Step 5: Solve for x
x = 28,805,091,993,205,212,201,353,216/8,939,660,145,820.80 - Step 6: Final answer
x = 3,222,168,575,018.07
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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.