Finding the Fourth Proportional to 479,488,855.24, 661,330,008.74 and 412,620,519.82
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Solution
The fourth proportional to 479,488,855.24, 661,330,008.74 and 412,620,519.82 is: 569,102,553.68
Step by Step Solution
- Step 1: Write the proportion equation
479,488,855.24 : 661,330,008.74 = 412,620,519.82 : x - Step 2: Convert to fraction form
479,488,855.24/661,330,008.74 = 412,620,519.82/x - Step 3: Cross multiply
479,488,855.24x = 661,330,008.74 × 412,620,519.82 - Step 4: Simplify right side
479,488,855.24x = 272,878,331,978,863,936 - Step 5: Solve for x
x = 272,878,331,978,863,936/479,488,855.24 - Step 6: Final answer
x = 569,102,553.68
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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.