Finding the Fourth Proportional to 52,723,231.20, 79,131,502.80 and 31,130,834.40
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Solution
The fourth proportional to 52,723,231.20, 79,131,502.80 and 31,130,834.40 is: 46,723,799.99
Step by Step Solution
- Step 1: Write the proportion equation
52,723,231.20 : 79,131,502.80 = 31,130,834.40 : x - Step 2: Convert to fraction form
52,723,231.20/79,131,502.80 = 31,130,834.40/x - Step 3: Cross multiply
52,723,231.20x = 79,131,502.80 × 31,130,834.40 - Step 4: Simplify right side
52,723,231.20x = 2,463,429,709,489,936 - Step 5: Solve for x
x = 2,463,429,709,489,936/52,723,231.20 - Step 6: Final answer
x = 46,723,799.99
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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.