Finding the Fourth Proportional to 3,869,946.44, 5,340,529.51 and 2,127,645.47
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Solution
The fourth proportional to 3,869,946.44, 5,340,529.51 and 2,127,645.47 is: 2,936,152.63
Step by Step Solution
- Step 1: Write the proportion equation
3,869,946.44 : 5,340,529.51 = 2,127,645.47 : x - Step 2: Convert to fraction form
3,869,946.44/5,340,529.51 = 2,127,645.47/x - Step 3: Cross multiply
3,869,946.44x = 5,340,529.51 × 2,127,645.47 - Step 4: Simplify right side
3,869,946.44x = 11,362,753,445,762.82 - Step 5: Solve for x
x = 11,362,753,445,762.82/3,869,946.44 - Step 6: Final answer
x = 2,936,152.63
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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.