Finding the Fourth Proportional to 18,428,246.70, 27,595,130.85 and 13,609,848.30
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Solution
The fourth proportional to 18,428,246.70, 27,595,130.85 and 13,609,848.30 is: 20,379,884.79
Step by Step Solution
- Step 1: Write the proportion equation
18,428,246.70 : 27,595,130.85 = 13,609,848.30 : x - Step 2: Convert to fraction form
18,428,246.70/27,595,130.85 = 13,609,848.30/x - Step 3: Cross multiply
18,428,246.70x = 27,595,130.85 × 13,609,848.30 - Step 4: Simplify right side
18,428,246.70x = 375,565,544,687,150.12 - Step 5: Solve for x
x = 375,565,544,687,150.12/18,428,246.70 - Step 6: Final answer
x = 20,379,884.79
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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.