Finding the Fourth Proportional to 4,670,721.20, 6,444,495.87 and 2,835,134.30
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Solution
The fourth proportional to 4,670,721.20, 6,444,495.87 and 2,835,134.30 is: 3,911,818.01
Step by Step Solution
- Step 1: Write the proportion equation
4,670,721.20 : 6,444,495.87 = 2,835,134.30 : x - Step 2: Convert to fraction form
4,670,721.20/6,444,495.87 = 2,835,134.30/x - Step 3: Cross multiply
4,670,721.20x = 6,444,495.87 × 2,835,134.30 - Step 4: Simplify right side
4,670,721.20x = 18,271,011,287,245.34 - Step 5: Solve for x
x = 18,271,011,287,245.34/4,670,721.20 - Step 6: Final answer
x = 3,911,818.01
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1.5x scale
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.