Finding the Fourth Proportional to 213,124,604.70, 319,686,919.20 and 51,566,540.70
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Solution
The fourth proportional to 213,124,604.70, 319,686,919.20 and 51,566,540.70 is: 77,349,813.99
Step by Step Solution
- Step 1: Write the proportion equation
213,124,604.70 : 319,686,919.20 = 51,566,540.70 : x - Step 2: Convert to fraction form
213,124,604.70/319,686,919.20 = 51,566,540.70/x - Step 3: Cross multiply
213,124,604.70x = 319,686,919.20 × 51,566,540.70 - Step 4: Simplify right side
213,124,604.70x = 16,485,148,530,184,412 - Step 5: Solve for x
x = 16,485,148,530,184,412/213,124,604.70 - Step 6: Final answer
x = 77,349,813.99
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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.