Finding the Fourth Proportional to 15,515,485.98, 21,411,370.44 and 8,992,898.79
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Solution
The fourth proportional to 15,515,485.98, 21,411,370.44 and 8,992,898.79 is: 12,410,200.21
Step by Step Solution
- Step 1: Write the proportion equation
15,515,485.98 : 21,411,370.44 = 8,992,898.79 : x - Step 2: Convert to fraction form
15,515,485.98/21,411,370.44 = 8,992,898.79/x - Step 3: Cross multiply
15,515,485.98x = 21,411,370.44 × 8,992,898.79 - Step 4: Simplify right side
15,515,485.98x = 192,550,287,322,117.75 - Step 5: Solve for x
x = 192,550,287,322,117.75/15,515,485.98 - Step 6: Final answer
x = 12,410,200.21
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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.