Finding the Fourth Proportional to 2,657,230,361,840.20, 3,985,458,559,233.90 and 772,620,588,272.20
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Solution
The fourth proportional to 2,657,230,361,840.20, 3,985,458,559,233.90 and 772,620,588,272.20 is: 1,158,818,362,453.65
Step by Step Solution
- Step 1: Write the proportion equation
2,657,230,361,840.20 : 3,985,458,559,233.90 = 772,620,588,272.20 : x - Step 2: Convert to fraction form
2,657,230,361,840.20/3,985,458,559,233.90 = 772,620,588,272.20/x - Step 3: Cross multiply
2,657,230,361,840.20x = 3,985,458,559,233.90 × 772,620,588,272.20 - Step 4: Simplify right side
2,657,230,361,840.20x = 3,079,247,336,569,770,422,042,624 - Step 5: Solve for x
x = 3,079,247,336,569,770,422,042,624/2,657,230,361,840.20 - Step 6: Final answer
x = 1,158,818,362,453.65
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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.