Finding the Fourth Proportional to 20,255,857.53, 27,953,081.31 and 10,963,425.99
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Solution
The fourth proportional to 20,255,857.53, 27,953,081.31 and 10,963,425.99 is: 15,129,526.74
Step by Step Solution
- Step 1: Write the proportion equation
20,255,857.53 : 27,953,081.31 = 10,963,425.99 : x - Step 2: Convert to fraction form
20,255,857.53/27,953,081.31 = 10,963,425.99/x - Step 3: Cross multiply
20,255,857.53x = 27,953,081.31 × 10,963,425.99 - Step 4: Simplify right side
20,255,857.53x = 306,461,538,134,637.25 - Step 5: Solve for x
x = 306,461,538,134,637.25/20,255,857.53 - Step 6: Final answer
x = 15,129,526.74
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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.