Finding the Fourth Proportional to 3,883,804.84, 5,357,455.86 and 2,430,978.04
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Solution
The fourth proportional to 3,883,804.84, 5,357,455.86 and 2,430,978.04 is: 3,353,375.90
Step by Step Solution
- Step 1: Write the proportion equation
3,883,804.84 : 5,357,455.86 = 2,430,978.04 : x - Step 2: Convert to fraction form
3,883,804.84/5,357,455.86 = 2,430,978.04/x - Step 3: Cross multiply
3,883,804.84x = 5,357,455.86 × 2,430,978.04 - Step 4: Simplify right side
3,883,804.84x = 13,023,857,545,929.31 - Step 5: Solve for x
x = 13,023,857,545,929.31/3,883,804.84 - Step 6: Final answer
x = 3,353,375.90
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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.