Finding the Fourth Proportional to 28,768,212.96, 39,701,342.16 and 16,545,081.12
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Solution
The fourth proportional to 28,768,212.96, 39,701,342.16 and 16,545,081.12 is: 22,832,906.84
Step by Step Solution
- Step 1: Write the proportion equation
28,768,212.96 : 39,701,342.16 = 16,545,081.12 : x - Step 2: Convert to fraction form
28,768,212.96/39,701,342.16 = 16,545,081.12/x - Step 3: Cross multiply
28,768,212.96x = 39,701,342.16 × 16,545,081.12 - Step 4: Simplify right side
28,768,212.96x = 656,861,926,610,075.88 - Step 5: Solve for x
x = 656,861,926,610,075.88/28,768,212.96 - Step 6: Final answer
x = 22,832,906.84
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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.