Finding the Fourth Proportional to 6,475,819.20, 8,936,643.68 and 3,575,215.68
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Solution
The fourth proportional to 6,475,819.20, 8,936,643.68 and 3,575,215.68 is: 4,933,804.92
Step by Step Solution
- Step 1: Write the proportion equation
6,475,819.20 : 8,936,643.68 = 3,575,215.68 : x - Step 2: Convert to fraction form
6,475,819.20/8,936,643.68 = 3,575,215.68/x - Step 3: Cross multiply
6,475,819.20x = 8,936,643.68 × 3,575,215.68 - Step 4: Simplify right side
6,475,819.20x = 31,950,428,611,308.90 - Step 5: Solve for x
x = 31,950,428,611,308.90/6,475,819.20 - Step 6: Final answer
x = 4,933,804.92
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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.