Finding the Fourth Proportional to 20,795,828.16, 31,181,735.28 and 6,415,034.64
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Solution
The fourth proportional to 20,795,828.16, 31,181,735.28 and 6,415,034.64 is: 9,618,848.09
Step by Step Solution
- Step 1: Write the proportion equation
20,795,828.16 : 31,181,735.28 = 6,415,034.64 : x - Step 2: Convert to fraction form
20,795,828.16/31,181,735.28 = 6,415,034.64/x - Step 3: Cross multiply
20,795,828.16x = 31,181,735.28 × 6,415,034.64 - Step 4: Simplify right side
20,795,828.16x = 200,031,911,956,510.09 - Step 5: Solve for x
x = 200,031,911,956,510.09/20,795,828.16 - Step 6: Final answer
x = 9,618,848.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.