Finding the Fourth Proportional to 3,366,783.36, 4,645,972.80 and 1,916,832.96
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Solution
The fourth proportional to 3,366,783.36, 4,645,972.80 and 1,916,832.96 is: 2,645,122.31
Step by Step Solution
- Step 1: Write the proportion equation
3,366,783.36 : 4,645,972.80 = 1,916,832.96 : x - Step 2: Convert to fraction form
3,366,783.36/4,645,972.80 = 1,916,832.96/x - Step 3: Cross multiply
3,366,783.36x = 4,645,972.80 × 1,916,832.96 - Step 4: Simplify right side
3,366,783.36x = 8,905,553,794,303.49 - Step 5: Solve for x
x = 8,905,553,794,303.49/3,366,783.36 - Step 6: Final answer
x = 2,645,122.31
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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.