Finding the Fourth Proportional to 164,437,885.55, 246,576,115.26 and 81,343,631.40
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Solution
The fourth proportional to 164,437,885.55, 246,576,115.26 and 81,343,631.40 is: 121,975,520.21
Step by Step Solution
- Step 1: Write the proportion equation
164,437,885.55 : 246,576,115.26 = 81,343,631.40 : x - Step 2: Convert to fraction form
164,437,885.55/246,576,115.26 = 81,343,631.40/x - Step 3: Cross multiply
164,437,885.55x = 246,576,115.26 × 81,343,631.40 - Step 4: Simplify right side
164,437,885.55x = 20,057,396,631,753,356 - Step 5: Solve for x
x = 20,057,396,631,753,356/164,437,885.55 - Step 6: Final answer
x = 121,975,520.21
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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.