Finding the Fourth Proportional to 7,890,819.02, 11,839,638.37 and 4,243,285.63
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Solution
The fourth proportional to 7,890,819.02, 11,839,638.37 and 4,243,285.63 is: 6,366,762.09
Step by Step Solution
- Step 1: Write the proportion equation
7,890,819.02 : 11,839,638.37 = 4,243,285.63 : x - Step 2: Convert to fraction form
7,890,819.02/11,839,638.37 = 4,243,285.63/x - Step 3: Cross multiply
7,890,819.02x = 11,839,638.37 × 4,243,285.63 - Step 4: Simplify right side
7,890,819.02x = 50,238,967,352,333.20 - Step 5: Solve for x
x = 50,238,967,352,333.20/7,890,819.02 - Step 6: Final answer
x = 6,366,762.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.