Finding the Fourth Proportional to 3,909,648.87, 5,395,461.44 and 2,190,705.75
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Solution
The fourth proportional to 3,909,648.87, 5,395,461.44 and 2,190,705.75 is: 3,023,255.74
Step by Step Solution
- Step 1: Write the proportion equation
3,909,648.87 : 5,395,461.44 = 2,190,705.75 : x - Step 2: Convert to fraction form
3,909,648.87/5,395,461.44 = 2,190,705.75/x - Step 3: Cross multiply
3,909,648.87x = 5,395,461.44 × 2,190,705.75 - Step 4: Simplify right side
3,909,648.87x = 11,819,868,389,557.75 - Step 5: Solve for x
x = 11,819,868,389,557.75/3,909,648.87 - Step 6: Final answer
x = 3,023,255.74
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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.