Finding the Fourth Proportional to 431,796,352.70, 647,694,529.05 and 248,130,343.10
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Solution
The fourth proportional to 431,796,352.70, 647,694,529.05 and 248,130,343.10 is: 372,195,514.65
Step by Step Solution
- Step 1: Write the proportion equation
431,796,352.70 : 647,694,529.05 = 248,130,343.10 : x - Step 2: Convert to fraction form
431,796,352.70/647,694,529.05 = 248,130,343.10/x - Step 3: Cross multiply
431,796,352.70x = 647,694,529.05 × 248,130,343.10 - Step 4: Simplify right side
431,796,352.70x = 160,712,665,717,169,408 - Step 5: Solve for x
x = 160,712,665,717,169,408/431,796,352.70 - Step 6: Final answer
x = 372,195,514.65
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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.