Finding the Fourth Proportional to 20,462,935.58, 28,239,519.46 and 11,171,001.08
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Solution
The fourth proportional to 20,462,935.58, 28,239,519.46 and 11,171,001.08 is: 15,416,346.36
Step by Step Solution
- Step 1: Write the proportion equation
20,462,935.58 : 28,239,519.46 = 11,171,001.08 : x - Step 2: Convert to fraction form
20,462,935.58/28,239,519.46 = 11,171,001.08/x - Step 3: Cross multiply
20,462,935.58x = 28,239,519.46 × 11,171,001.08 - Step 4: Simplify right side
20,462,935.58x = 315,463,702,429,012.31 - Step 5: Solve for x
x = 315,463,702,429,012.31/20,462,935.58 - Step 6: Final answer
x = 15,416,346.36
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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.