Finding the Fourth Proportional to 51,699,879.68, 71,349,936.04 and 28,499,133.92
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Solution
The fourth proportional to 51,699,879.68, 71,349,936.04 and 28,499,133.92 is: 39,331,066.05
Step by Step Solution
- Step 1: Write the proportion equation
51,699,879.68 : 71,349,936.04 = 28,499,133.92 : x - Step 2: Convert to fraction form
51,699,879.68/71,349,936.04 = 28,499,133.92/x - Step 3: Cross multiply
51,699,879.68x = 71,349,936.04 × 28,499,133.92 - Step 4: Simplify right side
51,699,879.68x = 2,033,411,382,387,394.75 - Step 5: Solve for x
x = 2,033,411,382,387,394.75/51,699,879.68 - Step 6: Final answer
x = 39,331,066.05
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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.