Finding the Fourth Proportional to 14,777,681.94, 20,396,601.09 and 8,668,078.74
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Solution
The fourth proportional to 14,777,681.94, 20,396,601.09 and 8,668,078.74 is: 11,963,942.99
Step by Step Solution
- Step 1: Write the proportion equation
14,777,681.94 : 20,396,601.09 = 8,668,078.74 : x - Step 2: Convert to fraction form
14,777,681.94/20,396,601.09 = 8,668,078.74/x - Step 3: Cross multiply
14,777,681.94x = 20,396,601.09 × 8,668,078.74 - Step 4: Simplify right side
14,777,681.94x = 176,799,344,276,489.84 - Step 5: Solve for x
x = 176,799,344,276,489.84/14,777,681.94 - Step 6: Final answer
x = 11,963,942.99
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1.5x scale
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.