Finding the Fourth Proportional to 330,985,442,514.47, 496,478,169,553.67 and 79,446,636,586.80
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Solution
The fourth proportional to 330,985,442,514.47, 496,478,169,553.67 and 79,446,636,586.80 is: 119,169,956,268.05
Step by Step Solution
- Step 1: Write the proportion equation
330,985,442,514.47 : 496,478,169,553.67 = 79,446,636,586.80 : x - Step 2: Convert to fraction form
330,985,442,514.47/496,478,169,553.67 = 79,446,636,586.80/x - Step 3: Cross multiply
330,985,442,514.47x = 496,478,169,553.67 × 79,446,636,586.80 - Step 4: Simplify right side
330,985,442,514.47x = 39,443,520,709,810,091,720,704 - Step 5: Solve for x
x = 39,443,520,709,810,091,720,704/330,985,442,514.47 - Step 6: Final answer
x = 119,169,956,268.05
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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.